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11.Electricity
11 Conductivity and Electric Current
Electric current flows from the positive terminal of a battery to the negative terminal.
electric-current-flows-from-the-positive-terminal-of-a-battery-to-the-negative-terminal
Electric potential is a condition which determine the flow of electric charge.. The current flows from the positive terminal to the negative terminal of the source. The direction of current is conventionally taken
electric-potential-is-a-condition-which-determine-the-flow-of-electric-charge-the-current-flows-from-the-flow-of-electric-charge-the-current-flows-from-the-positive-terminal-to-the-negative-terminal-of-the-source-the-direction-of-current-is-conventionally-taken
Fill the blank A and B : The potential difference in an electrical circuit is measured by using __A__ . The current in an electrical circuit is measured by using ____B__. Here A and B is
fill-the-blank-a-and-b-the-potential-difference-in-an-electrical-circuit-is-measured-by-using-a-the-current-in-an-electrical-circuit-is-measured-by-using-b-here-a-and-b-is
Electricity is one of the main source of energy at home. The electricity is supplied through set of three wires. It consist of red wire, black wire and green wire. Match accordingly colour of wire and its meaning
electricity-is-one-of-the-main-source-of-energy-at-home-the-electricity-is-supplied-through-set-of-three-wires-it-consist-of-red-wire-black-wire-and-green-wire-match-accordingly-colour-of-wire-and-its-meaning
A fuse wire should have:
fuse-wire-should-have
Which scientist is called "Father of Electricity"
which-scientist-is-called-father-of-electricity
The filament of an electric bulb is of tungsten because
the-filament-of-an-electric-bulb-is-of-tungsten-because
Assertion :Heater wire must have high resistance and high melting point. Reason: If resistance is high, the electric conductivity will be less.
assertion-heater-wire-must-have-high-resistance-and-high-melting-point-reason-if-resistance-is-high-the-electric-conductivity-will-be-less
Read the following statement: Answer is following: Statement (1) : Electric appliances like- Electric heater, electric toaster, electric geysers, coils of high resistance and high melting point thus producing more heat. Statement (2) : Copper wire is very commonly used in electric appliances like electric header, electric toaster, electric geysers, electric irons .
read-the-following-statement-answer-is-following-statement-1-electric-appliances-like-electric-heater-electric-toaster-electric-geysers-coils-of-high-resistance-and-high-melting-point-thus-producing-more-heat-statement-2-copper-wire-is-very-commonly-used-in-electric-appliances-like-electric-header-electric-toaster-electric-geysers-electric-irons
Match the following:
match-the-following
Lightning is caused due to discharge between similarly charged clouds. This statement is
lightning-is-caused-due-to-discharge-between-similarly-charged-clouds-this-statement-is
The electricity that would not flow is referred to as
the-electricity-that-would-not-flow-is-referred-to-as
The object which has deficiency of electron will be
the-object-which-has-deficiency-of-electron-will-be
Charging an uncharged conductor by bringing it near a charged conductor without touching it is called.
charging-an-uncharged-conductor-by-bringing-it-near-a-charged-conductor-without-touching-it-is-called
Why the lower end of a lightning conductor is connected to a metal plate which is buried deep inside the Earth with the help of conducting wire?
why-the-lower-end-of-a-lightning-conductor-is-connected-to-a-metal-plate-which-is-buried-deep-inside-the-earth-with-the-help-of-conducting-wire
Which of the following processes can take place during a lightning in a thunderstorm?
which-of-the-following-processes-can-take-place-during-a-lightning-in-a-thunderstorm
Which of the following is most vulnerable place for the lighting of clouds?
which-of-the-following-is-most-vulnerable-place-for-the-lighting-of-clouds
A charged body is held near the disc of positively charged GLE. It is found that leaves of GLE diverge more. The nature of charge on the charged body is:
a-charged-body-is-held-near-the-disc-of-positively-charged-gle-it-is-found-that-leaves-of-gle-diverge-more-the-nature-of-charge-on-the-charged-body-is
A sure test of electrification is:
a-sure-test-of-electrification-is
Read the following facts: Neutron: Neutron has no electric charge. It has mass almost equal to mass of one atom of hydrogen. Proton: Proton has a unit positive charge on it. It has a mass almost equal to mass of one atom of hydrogen. Electron :Electron has a unit negative charge on it. its mass is 1/1837 times the mass of one atom of hydrogen. What is the number of protons and electrons in a neutral atom?
neutron-neutron-has-no-electric-charge-it-has-mass-almost-equal-to-mass-of-one-atom-of-hydrogen-proton-proton-has-a-unit-positive-charge-on-it-it-has-a-mass-almost-equal-to-mass-of-one-atom-of-hydrogen-electron-electron-has-a-unit-negative-charge-on-it-its-mass-is-1-1837-times-the-mass-of-one-atom-of-hydrogen-what-is-the-number-of-protons-and-electrons-in-a-neutral-atom
A body can be charged by bringing a charged body near it but not by touching it. This is so called charging by
a-body-can-be-charged-by-bringing-a-charged-body-near-it-but-not-by-touching-it-this-is-so-called-charging-by
A body is said to be positively charged if
a-body-is-said-to-be-positively-charged-if
When two different bodies are charged by rubbing against each other:
when-two-different-bodies-are-charged-by-rubbing-against-each-other
A force produced by rubbing a comb against dry hair is called___________.
a-force-produced-by-rubbing-a-comb-against-dry-hair-is-called
Ganesh makes a simple circuit with one bulb and five cells. The bulb lights for an instant and then blows out. Why?
ganesh-makes-a-simple-circuit-with-one-bulb-and-five-cells-the-bulb-lights-for-an-instant-and-then-blows-out-why
What will be current drawn by an electric bulb of 110 W when it is connected to a source of 220 Volt?
what-will-be-current-drawn-by-an-electric-bulb-of-110-w-when-it-is-connected-to-a-source-of-220-volt
Calculate the electrical energy (in watt/hour) consumed when a current of 10 ampere flows through a resistance of 10 ohm for 15 minute?
calculate-the-electrical-energy-in-watt-hour-consumed-when-a-current-of-10-ampere-flows-through-a-resistance-of-10-ohm-for-15-minute
The SI Unit of electric energy is joule. While the commercial unit of electric energy is kilowatt- hour (kwh). What is the relationship between the SI unit and commercial unit of electrical energy.
the-si-unit-of-electric-energy-is-joule-while-the-commercial-unit-of-electric-energy-is-kilowatt-hour-kwh-what-is-the-relationship-between-the-si-unit-and-commercial-unit-of-electrical-energy
Fill the A and B The overheating of electrical wiring in any circuit due to the flow of large current through it is called ___A______ of the electric circuit. while When live and neutral wires come in contact with each other, the incident is called ----B----
fill-the-a-and-b-the-overheating-of-electrical-wiring-in-any-circuit-due-to-the-flow-of-large-current-through-it-is-called-a-of-the-electric-circuit-while-when-live-and-neutral-wires-come-in-contact-with-each-other-the-incident-is-called-b
An electric meter read s 2260 kwh at the end of the month while a month ago its reading was 2110 kwh. Find the cost of electric energy if one unit of electricity charge is Rs. 3.50 paisa
an-electric-meter-read-s-2260-kwh-at-the-end-of-the-month-while-a-month-ago-its-reading-was-2110-kwh-find-the-cost-of-electric-energy-if-one-unit-of-electricity-charge-is-rs-350-paisa
Match
match
An electrical bulb of a torch cell is glowing. Which of the following represent correct sequence of energy conversion?
an-electrical-bulb-of-a-torch-cell-is-glowing-which-of-the-following-represent-correct-sequence-of-energy-conversion
An electrical bulb is connected to solar panel. This bulb is glowing. Which of the following represent correct sequence of energy conversion.
an-electrical-bulb-is-connected-to-solar-panel-this-bulb-is-glowing-which-of-the-following-represent-correct-sequence-of-energy-conversion
Which of the following materials is the most suitable for making a permanent magnet?
which-of-the-following-materials-is-the-most-suitable-for-making-a-permanent-magnet
Question : An electric bulb of 100 watt is used for 4 hours. The unit electric energy used is - ( UP Lower Sub. (pre) 2009 )
question-an-electric-bulb-of-100-watt-is-used-for-4-hours-the-unit-electric-energy-used-is-up-lower-sub-pre-2009
Question: Five bulbs each of 100 watt capacity in a tunnel are illuminated continuously for twenty hours. The consumption of electricity will be : ( UP PCS (pre) 2017 )
question-five-bulbs-each-of-100-watt-capacity-in-a-tunnel-are-illuminated-continuously-for-twenty-hours-the-consumption-of-electricity-will-be-up-pcs-pre-2017
Question: A 100 watt electric bulb is used for 10 hours. What will be the cost of electricity consumed, if the consumption cost is Rs. 5 per unit ? ( RAS/RTS (pre) 2012 )
question-a-100-watt-electric-bulb-is-used-for-10-hours-what-will-be-the-cost-of-electricity-consumed-if-the-consumption-cost-is-rs-5-per-unit-ras-rts-pre-2012
Question: If a bulb of 100 watt burns for 10 hours, the expenditure of electricity will be- ( 41st BPSC. (pre) 1996 )
question-if-a-bulb-of-100-watt-burns-for-10-hours-the-expenditure-of-electricity-will-be-41st-bpsc-pre-1996
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Question: When electrical energy is converted into motion ( 47th BPSC (pre) 2005 )
question-when-electrical-energy-is-converted-into-motion-47th-bpsc-pre-2005
Question: A device which converts electrical energy into mechanical energy is- ( UP PCS (mains) 2007 )
question-a-device-which-converts-electrical-energy-into-mechanical-energy-is-up-pcs-mains-2007
Question: A dynamo which is said to generate electricity actually acts as a : ( UP PCS (mains) 2009 )
question-a-dynamo-which-is-said-to-generate-electricity-actually-acts-as-a-up-pcs-mains-2009
Question: How many units of electricity will be consumed if you use a 60-watt electric bulb for 5 hours everyday for 30 days ? ( RAS/RTS (pre) 2003 )
question-how-many-units-of-electricity-will-be-consumed-if-you-use-a-60-watt-electric-bulb-for-5-hours-everyday-for-30-days-ras-rts-pre-2003
Question: Of the two bulbs in a house, one glows brighter than the other. Which of the two has a larger resistance ? ( UP PCS (mains) 2013 )
question-of-the-two-bulbs-in-a-house-one-glows-brighter-than-the-other-which-of-the-two-has-a-larger-resistance-up-pcs-mains-2013
Question: An electric bulb is connected to 220 v generator. The current is 0.5 A. The power of the bulb is ( Chhattisgarh PCS (pre) 2016 )
question-an-electric-bulb-is-connected-to-220-v-generator-the-current-is-0-5-a-the-power-of-the-bulb-is-chhattisgarh-pcs-pre-2016
Question: Electricity consumption bill is based on the measurement of- 1. Watt 2. Voltage 3. Ohm 4. Ampere Select your answer of the following codes- ( 40th BPSC (pre) 1995 )
question-electricity-consumption-bill-is-based-on-the-measurement-of-1-watt-2-voltage-3-ohm-4-ampere-select-your-answer-of-the-following-codes-40th-bpsc-pre-1995
Question: The total resistance of a circuit having two parallel resistors is 1.403 kilo-ohm. If one of the resistors is 2.0 kilo-ohm, then the other resistor will be ( 66th BPSC. (Pre) 2020 )
question-the-total-resistance-of-a-circuit-having-two-parallel-resistors-is-1-403-kilo-ohm-if-one-of-the-resistors-is-2-0-kilo-ohm-then-the-other-resistor-will-be-66th-bpsc-pre-2020
Question: 'Dynamo' is a device, which converts : ( UP PCS (pre) 2016 ), ( 39th BPSC (pre) 1994 ), ( UP PCS (pre) 1993 ) UP PCS (pre) 1992 )
question-dynamo-is-a-device-which-converts-up-pcs-pre-2016-39th-bpsc-pre-1994-up-pcs-pre-1993-up-pcs-pre-1992
Question: How two identical bulbs should be connected to get maximum light ? 1. Both are connected in series. 2. Both are connected in parallel. Select the correct answer using the code given below : ( UP RO/ARO (pre) 2021 )
question-how-two-identical-bulbs-should-be-connected-to-get-maximum-light-1-both-are-connected-in-series-2-both-are-connected-in-parallel-select-the-correct-answer-using-the-code-given-below-up-ro-aro-pre-2021
Question : Turbines and Dynamos are used to convert which energy to electrical energy ? ( 44th BPSC (pre) 2000 )
question-turbines-and-dynamos-are-used-to-convert-which-energy-to-electrical-energy-44th-bpsc-pre-2000
Question: Of the two bulbs in a house, one glows brighter than the other. IN this context which of the following statements is correct ? ( UP Lower Sub (pre) 2008 ), ( UP PCS (pre) 2009 )
question-of-the-two-bulbs-in-a-house-one-glows-brighter-than-the-other-in-this-context-which-of-the-following-statements-is-correct-up-lower-sub-pre-2008-up-pcs-pre-2009
Question: Dynamo is a machine which is used for- ( UP PCS (mains) 2012 ), (RAS/RTS (pre) 2012 )
question-dynamo-is-a-machine-which-is-used-for-up-pcs-mains-2012-ras-rts-pre-2012
Question: Consider the following statements : Assertion (A) : Lighting conductor prevent buildings from damages in the event of lightning strike. Reason (R) : The electric charge conduct to ground through the wire, instead of passing through the structure. Select the correct answer using the codes given below : ( Utt PCS (mains) 2002 ), ( UP PCS (pre) 1999 )
question-consider-the-following-statements-assertion-a-lighting-conductor-prevent-buildings-from-damages-in-the-event-of-lightning-strike-reason-r-the-electric-charge-conduct-to-ground-through-the-wire-instead-of-passing-through-the-structure-select-the-correct-answer-using-the-codes-given-below-utt-pcs-mains-2002-up-pcs-pre-1999
Question: Lighting can even burn a tree because it contains tremendous amount of ( MP PCS (pre) 2017 )
question-lighting-can-even-burn-a-tree-because-it-contains-tremendous-amount-of-mp-pcs-pre-2017
Question: In electrical motor : ( 64th BPSC (pre) 2018 )
question-in-electrical-motor-64th-bpsc-pre-2018
Question: Which of the following metals is used as filament in lighting bulbs ? ( 44th BPSC (pre) 2000 )
question-which-of-the-following-metals-is-used-as-filament-in-lighting-bulbs-44th-bpsc-pre-2000
Question: Filament of electric bulb is made of : ( Utt PCS (pre) 2012 )
question-filament-of-electric-bulb-is-made-of-utt-pcs-pre-2012
Question: The device which works on the principle of electromagnetic induction is : ( UP RO/ARO (pre) 2017 )
question-the-device-which-works-on-the-principle-of-electromagnetic-induction-is-up-ro-aro-pre-2017
Question: Nickel-Cadmium (Ni-Cd) battery is used in : ( Utt PCS (Pre) 2016 )
question-nickel-cadmium-ni-cd-battery-is-used-in-utt-pcs-pre-2016
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Question: A device which converts chemical energy into electrical energy is called - ( RAS/RTS (pre) 2013 )
question-a-device-which-converts-chemical-energy-into-electrical-energy-is-called-ras-rts-pre-2013
Question: Consider the following statements regarding a motor car battery - 1. The voltage is usually 12 V. 2. Electrolyte used is hydrochloric acid. 3. Electrodes are lead and copper. 4 Capacity is expressed in ampere-hour. Which of the above statements are correct ? ( IAS (pre) 1999 )
question-consider-the-following-statements-regarding-a-motor-car-battery-1-the-voltage-is-usually-12-v-2-electrolyte-used-is-hydrochloric-acid-3-electrodes-are-lead-and-copper-4-capacity-is-expressed-in-ampere-hour-which-of-the-above-statements-are-correct-ias-pre-1999
Question: Faraday constant : ( 66th BPSC. (pre) 2020 )
question-faraday-constant-66th-bpsc-pre-2020
Question: The filament of an electric bulb is made of- ( UP PCS (pre) 2011 ), ( UP PCS (pre) 2005 ), ( UP PCS (pre) 1990 )
question-the-filament-of-an-electric-bulb-is-made-of-up-pcs-pre-2011-up-pcs-pre-2005-up-pcs-pre-1990
Question: Consider the following statements : An ordinary light bulb has a rather short life because the: 1. Filament wire is not uniform. 2. Bulb cannot be evacuated completely. 3. Wires supporting the filament melt at high temperatures. Which of the above statements are correct ? ( IAS (pre) 1999 )
question-consider-the-following-statements-an-ordinary-light-bulb-has-a-rather-short-life-because-the-1-filament-wire-is-not-uniform-2-bulb-cannot-be-evacuated-completely-3-wires-supporting-the-filament-melt-at-high-temperatures-which-of-the-above-statements-are-correct-ias-pre-1999
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Question: In a three-pin electrical plug longest pin should be connected to ( UP PCS (pre) 2007 )
question-in-a-three-pin-electrical-plug-longest-pin-should-be-connected-to-up-pcs-pre-2007
Question: A wire with black insulation during electric supply is- ( Chhattisgarh PCS. (pre) 2014 )
question-a-wire-with-black-insulation-during-electric-supply-is-chhattisgarh-pcs-pre-2014
Question: Light Emitting Diode (LED) work on principle of : ( Jharkhand PCS (pre) 2021 )
question-light-emitting-diode-led-work-on-principle-of-jharkhand-pcs-pre-2021
Question: In electric apparatus 'earth' is used : ( UP PCS (pre) 2002 )
question-in-electric-apparatus-earth-is-used-up-pcs-pre-2002
Question: Full form of C.F.L. is - ( UP PCS (mains) 2015 )
question-full-form-of-c-f-l-is-up-pcs-mains-2015
Question : The electric current does not flow between two properly connected charged bodies if they are having ( UP PSC (RI) 2014 )
question-the-electric-current-does-not-flow-between-two-properly-connected-charged-bodies-if-they-are-having-up-psc-ri-2014
Question: Domestic electrical wiring is basically a : ( IAS (pre) 1996 )
question-domestic-electrical-wiring-is-basically-a-ias-pre-1996
Question: A fuse is used in main electric supply as a safety device. Which one of the following statements about the fuse is correct ? ( IAS (pre) 1998 )
question-a-fuse-is-used-in-main-electric-supply-as-a-safety-device-which-one-of-the-following-statements-about-the-fuse-is-correct-ias-pre-1998
Question : Assertion (A) : Light Emitting Diode (LED) lamps offer longer service life as compared to Compact Fluorescent Lamps (CFL). Reason (R) : Light Emitting Diodes (LED) lamps are more energy efficient as compared to the Compact Fluorescent Lamps (CFL). Select the correct answer using the code given below : ( RAS/RTS (pre)2013 )
question-assertion-a-light-emitting-diode-led-lamps-offer-longer-service-life-as-compared-to-compact-fluorescent-lamps-cfl-reason-r-light-emitting-diodes-led-lamps-are-more-energy-efficient-as-compared-to-the-compact-fluorescent-lamps-cfl-select-the-correct-answer-using-the-code-given-below-ras-rts-pre-2013
Question : The filament of a halogen lamp is an alloy of - ( RAS/RTS (pre) 1999 )
question-the-filament-of-a-halogen-lamp-is-an-alloy-of-ras-rts-pre-1999
Question : A fuse wire is characterized by : ( UP PCS (pre) 1993 )
question-a-fuse-wire-is-characterized-by-up-pcs-pre-1993
Question: Assertion (A) : The temperature of a metal wire rises when an electric current is passed through it. Reason (R) : Collision of metal atoms with each other releases heat energy. ( IAS (pre) 1998 )
question-assertion-a-the-temperature-of-a-metal-wire-rises-when-an-electric-current-is-passed-through-it-reason-r-collision-of-metal-atoms-with-each-other-releases-heat-energy-ias-pre-1998
Question : Principle of fuse is ( 43rd BPSC (pre) 1999 )
question-principle-of-fuse-is-43rd-bpsc-pre-1999
Question : Fuse wire used for safety of household have : ( RAS/RTS (pre) 1997-98 )
question-fuse-wire-used-for-safety-of-household-have-ras-rts-pre-1997-98
Question: What is the difference between a CFL and an LED Lamp ? 1. To Produce light, a CFL uses mercury vapour and phosphor while an LED lamp uses semi-conductor material. 2. The average life span of a CFL is much longer than of an LED lamp. 3. A CFL is less energy-efficient as compared to an LED lamp. Which of the statements given above is/are correct ? ( IAS (pre) 2011 )
question-what-is-the-difference-between-a-cfl-and-an-led-lamp-1-to-produce-light-a-cfl-uses-mercury-vapour-and-phosphor-while-an-led-lamp-uses-semi-conductor-material-2-the-average-life-span-of-a-cfl-is-much-longer-than-of-an-led-lamp-3-a-cfl-is-less-energy-efficient-as-compared-to-an-led-lamp-which-of-the-statements-given-above-is-are-correct-ias-pre-2011
Question: Two wires have their lengths, diameters and resistivities all in the ratio of 1 : 2 if the resistance of the thinner wire is 10 ohm, the resistance of the thicker wire is : ( IAS (pre) 2001 )
question-two-wires-have-their-lengths-diameters-and-resistivities-all-in-the-ratio-of-1-2-if-the-resistance-of-the-thinner-wire-is-10-ohm-the-resistance-of-the-thicker-wire-is-ias-pre-2001
Question: If potential difference and current flowing through a wire is increased twice each then electric power : ( Chhattisgarh PCS (pre) 2015 )
question-if-potential-difference-and-current-flowing-through-a-wire-is-increased-twice-each-then-electric-power-chhattisgarh-pcs-pre-2015
Question: What gases are filled in fluorescent tube ? ( UP PCS (pre) 1990 )
question-what-gases-are-filled-in-fluorescent-tube-up-pcs-pre-1990
Question : How does the white light produce in the tube ? ( 47th BPSC (pre) 2005 )
question-how-does-the-white-light-produce-in-the-tube-47th-bpsc-pre-2005
Question : Which is the gas inside an electric bulb ? ( MP PCS (pre) 2000 )
question-which-is-the-gas-inside-an-electric-bulb-mp-pcs-pre-2000
Question : Fluorescent tubes are fitted with a choke. The choke coil - ( IAS (pre) 2000 )
question-fluorescent-tubes-are-fitted-with-a-choke-the-choke-coil-ias-pre-2000
Question: With reference to street-lighting, how do sodium lamps differ from LED lamps ? 1. Sodium lamps produce light in 360 degrees but it is not so in the case of LED lamps. 2. As street-lights, sodium lamps have longer life span than LED lamps. 3. The spectrum of visible light from sodium lamps is almost monochromatic while LED lamps offer significant colour advantages in street-lighting. Select the correct answer using the code given below. ( IAS (pre) 2021 )
question-with-reference-to-street-lighting-how-do-sodium-lamps-differ-from-led-lamps-1-sodium-lamps-produce-light-in-360-degrees-but-it-is-not-so-in-the-case-of-led-lamps-2-as-street-lights-sodium-lamps-have-longer-life-span-than-led-lamps-3-the-spectrum-of-visible-light-from-sodium-lamps-is-almost-monochromatic-while-led-lamps-offer-significant-colour-advantages-in-street-lighting-select-the-correct-answer-using-the-code-given-below-ias-pre-2021
Question: In comparison to an electric bulb, a fluorescent tube is preferred because - ( UP PCS (pre) 2009 )
question-in-comparison-to-an-electric-bulb-a-fluorescent-tube-is-preferred-because-up-pcs-pre-2009
Question : With reference to the electric potential which of the following statements is/are correct ? 1. It is a scaler quantity. 2. It is a vector quantity. Select the correct answer using the codes given below. ( UP PCS (pre) 2021 )
question-with-reference-to-the-electric-potential-which-of-the-following-statements-is-are-correct-1-it-is-a-scaler-quantity-2-it-is-a-vector-quantity-select-the-correct-answer-using-the-codes-given-below-up-pcs-pre-2021
Question : The device used for converting alternating current to direct current is called - ( Chhattisgarh PCS (pre) 200 8), ( UP PCS (pre) 2006 )
question-the-device-used-for-converting-alternating-current-to-direct-current-is-called-chhattisgarh-pcs-pre-200-8-up-pcs-pre-2006
Question: Which of the following is the purpose for which a transformer is used ? ( UP PCS (pre) 2011 )
question-which-of-the-following-is-the-purpose-for-which-a-transformer-is-used-up-pcs-pre-2011
Question : Alternate current is not preferable ? (RAS/RTS (pre) 1994 )
question-alternate-current-is-not-preferable-ras-rts-pre-1994
Question: Alternating current is converted to direct current - ( UP UDA /LDA (spl) (mains) 2010 )
question-alternating-current-is-converted-to-direct-current-up-uda-lda-spl-mains-2010
Question : A mobile phone charge is : ( UP PCS (pre) 2017 )
question-a-mobile-phone-charge-is-up-pcs-pre-2017
Question : The basic difference between an AC generator and a DC generator is that- ( Chhattisgarh PCS (pre) 2018 )
question-the-basic-difference-between-an-ac-generator-and-a-dc-generator-is-that-chhattisgarh-pcs-pre-2018
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Question : Assertion (A) : In India, electricity distribution companies calculate the consumption of electricity in kWh. ( MP PCS (pre) 2008)
question-assertion-a-in-india-electricity-distribution-companies-calculate-the-consumption-of-electricity-in-kwh-mp-pcs-pre-2008
Question: Given below are two statement, one labelled as Assertion (A) and the other labelled as Reason (R). Assertion (A) : Transformer is useful for stepping up stepping down voltages. Reason (R) : Transformer is a device used in D.C. circuits. In the context of the above tow statements, which one of the following is correct ? ( IAS (pre) 1996 )
question-given-below-are-two-statement-one-labelled-as-assertion-a-and-the-other-labelled-as-reason-r-assertion-a-transformer-is-useful-for-stepping-up-stepping-down-voltages-reason-r-transformer-is-a-device-used-in-d-c-circuits-in-the-context-of-the-above-tow-statements-which-one-of-the-following-is-correct-ias-pre-1996
Question: Transformer is used for : ( UP PCS (pre) 2006 )
question-transformer-is-used-for-up-pcs-pre-2006
Question: Which of the following option represents the consumption of power in ascending order - ( UP PCS (pre) 1992)
question-which-of-the-following-option-represents-the-consumption-of-power-in-ascending-order-up-pcs-pre-1992question-which-of-the-following-option-represents-the-consumption-of-power-in-ascending-order-up-pcs-pre-1992
Question : Solar energy is converted into electric energy through : ( UP PCS (pre) 2022 )
question-solar-energy-is-converted-into-electric-energy-through-up-pcs-pre-2022
Question: Photovoltaic cells is related to : ( RAS/RTS (pre) 2016 )
question-photovoltaic-cells-is-related-to-ras-rts-pre-2016
Question: Photovoltaic cells are : ( UP PCS (pre)2016 )
question-photovoltaic-cells-are-up-pcs-pre-2016
Question: Which one of the following elements is used in solar cells ? ( Utt PCS (pre) 2012 )
question-which-one-of-the-following-elements-is-used-in-solar-cells-utt-pcs-pre-2012
Question: With reference to solar power production in India, consider the following statements : 1. India is the third largest in the world in the manufacture of silicon wafers used in photovoltaic units. 2. The solar power tariffs are determined by the solar Energy Corporation of India. Which of the statements given above is/are correct ? ( IAS (pre) 2018 )
question-with-reference-to-solar-power-production-in-india-consider-the-following-statements-1-india-is-the-third-largest-in-the-world-in-the-manufacture-of-silicon-wafers-used-in-photovoltaic-units-2-the-solar-power-tariffs-are-determined-by-the-solar-energy-corporation-of-india-which-of-the-statements-given-above-is-are-correct-ias-pre-2018
Question: The Earth's magnetic field is due to : ( UP PCS (mains) 2011 )
question-the-earth-s-magnetic-field-is-due-to-up-pcs-mains-2011
Question: What is the source of electrical energy in an artificial satellite ? ( UP PCS (pre) 2014, 2006, 2000, MP PCS (pre) 2000 )
question-what-is-the-source-of-electrical-energy-in-an-artificial-satellite-up-pcs-pre-2014-2006-2000-mp-pcs-pre-2000
Question: With reference to technologies for solar power production, consider the following statement : 1. 'Photovoltaics' is a technology that generates electricity by direct conversion of light into electricity, while 'Solar Thermal' is a technology that utilizes the Sun's rays to generate heat which is further used in electricity generation process. 2. Photovoltaics generates Alternating Current (AC), while Solar Thermal generates Direct Current (DC). 3. India has manufacturing base for Solar Thermal Technology, but not for photovoltaics. Which of the statements given above is/are correct ? ( IAS (pre) 2014 )
question-with-reference-to-technologies-for-solar-power-production-consider-the-following-statement-1-photovoltaics-is-a-technology-that-generates-electricity-by-direct-conversion-of-light-into-electricity-while-solar-thermal-is-a-technology-that-utilizes-the-sun-s-rays-to-generate-heat-which-is-further-used-in-electricity-generation-process-2-photovoltaics-generates-alternating-current-ac-while-solar-thermal-generates-direct-current-dc-3-india-has-manufacturing-base-for-solar-thermal-technology-but-not-for-photovoltaics-which-of-the-statements-given-above-is-are-correct-ias-pre-2014
Question: With reference to solar water pumps, consider the following statements : 1. Solar power can be used for running surface pumps and not for submersible pumps. 2. Solar power can be used for running centrifugal pumps and not the ones with piston. Which of the statement given above is/are correct ? ( IAS (pre) 2020 )
question-with-reference-to-solar-water-pumps-consider-the-following-statements-1-solar-power-can-be-used-for-running-surface-pumps-and-not-for-submersible-pumps-2-solar-power-can-be-used-for-running-centrifugal-pumps-and-not-the-ones-with-piston-which-of-the-statement-given-above-is-are-correct-ias-pre-2020
Question: Consider the following statement : Assertion (A) : Space-based solar power (SBSP), it is suggested be made a national goal. Reason (R) : Supply of SBSP is 99% uninterrupted throughout the year, besides the enormity of energy availability. Select the correct answer using the codes given below : ( UP PCS (pre) 2010 )
question-consider-the-following-statement-assertion-a-space-based-solar-power-sbsp-it-is-suggested-be-made-a-national-goal-reason-r-supply-of-sbsp-is-99-uninterrupted-throughout-the-year-besides-the-enormity-of-energy-availability-select-the-correct-answer-using-the-codes-given-below-up-pcs-pre-2010
Question: The characteristic of superconductor is - ( 39th BPSC (pre) 1994 )
question-the-characteristic-of-superconductor-is-39th-bpsc-pre-1994
Question: The substance which has a large number of free electrons and offer a low resistance is called : ( Utt PCS (pre) 2021 )
question-the-substance-which-has-a-large-number-of-free-electrons-and-offer-a-low-resistance-is-called-utt-pcs-pre-2021
Question: Which one of the following is the best conductor of electricity ? ( UP PCS (mains) 2015 )
question-which-one-of-the-following-is-the-best-conductor-of-electricity-up-pcs-mains-2015
Question: Which element is the best conductor of electricity ? ( Chhattisgarh PCS. (pre) 2011 ), ( MP PCS (pre) 1990 )
question-which-element-is-the-best-conductor-of-electricity-chhattisgarh-pcs-pre-2011-mp-pcs-pre-1990
Question: Which of the following is the best conductor of electricity ? ( UP PCS (mains) 2012 ), ( RAS/RTS (pre) 2012 )
question-which-of-the-following-is-the-best-conductor-of-electricity-up-pcs-mains-2012-ras-rts-pre-2012
Question: Due to temperature variation along a conductor, potential variation occurs along it. This phenomenon is know as : ( 67th BPSC (pre) (Re. Exam ) 2022 )
question-due-to-temperature-variation-along-a-conductor-potential-variation-occurs-along-it-this-phenomenon-is-know-as-67th-bpsc-pre-re-exam-2022
Question: Assertion (A) : Copper rods are generally preferred to iron rods for making lightning conductors. Reason (R) : Copper is better conductor of electricity than iron and is not easily oxidized under atmospheric conditions. ( UP RO/ARO (mains) 2013 )
question-assertion-a-copper-rods-are-generally-preferred-to-iron-rods-for-making-lightning-conductors-reason-r-copper-is-better-conductor-of-electricity-than-iron-and-is-not-easily-oxidized-under-atmospheric-conditions-up-ro-aro-mains-2013
Question : Which of the following elements is a semiconductor ? ( UP PCS (pre) 2018 )
question-which-of-the-following-elements-is-a-semiconductor-up-pcs-pre-2018
Question: Which one of the following is an important component of a transistor ? ( UP RO/ARO (pre) 2016 )
question-which-one-of-the-following-is-an-important-component-of-a-transistor-up-ro-aro-pre-2016
Question: At absolute zero temperature, the electric resistance in semiconductor is- ( RAS/RTS (pre) 1992 )
question-at-absolute-zero-temperature-the-electric-resistance-in-semiconductor-is-ras-rts-pre-1992
Question: Which of the following is a semiconductor ? ( UP PCS (pre) (Re. Exam) 2015 )
question-which-of-the-following-is-a-semiconductor-up-pcs-pre-re-exam-2015
Question: Which one of the following metals is used as semiconductor in transistors ? ( 44th BPSC (pre) 2000 )
question-which-one-of-the-following-metals-is-used-as-semiconductor-in-transistors-44th-bpsc-pre-2000
Question: The most commonly used material for making transistors is - ( UP PCS (pre) 2015 )
question-the-most-commonly-used-material-for-making-transistors-is-up-pcs-pre-2015
Question: The newly discovered high temperature super conductors are- ( Utt PCS (pre) 2006 ), ( UP PCS (pre) 2000 )
question-the-newly-discovered-high-temperature-super-conductors-are-utt-pcs-pre-2006-up-pcs-pre-2000
Question: The Government of India has totally banned the export of burnt coal (Jhama) because it contains recoverable amount of a metal/element which is used in transistors. Which one of the following is that element ? ( IAS (pre) 1993 )
question-the-government-of-india-has-totally-banned-the-export-of-burnt-coal-jhama-because-it-contains-recoverable-amount-of-a-metal-element-which-is-used-in-transistors-which-one-of-the-following-is-that-element-ias-pre-1993
Question : At which temperature superconductivity can be of tremendous economic interest saving billions of rupees ? ( UP PCS (pre) 2000)
question-at-which-temperature-superconductivity-can-be-of-tremendous-economic-interest-saving-billions-of-rupees-up-pcs-pre-2000
Question: The resistance of a semiconductor on heating : ( UP PCS (mains) 2015 )
question-the-resistance-of-a-semiconductor-on-heating-up-pcs-mains-2015
Question: On heating, the resistance of a semiconductor : ( 66th BPSC (pre) 2020 )
question-on-heating-the-resistance-of-a-semiconductor-66th-bpsc-pre-2020
Question: The highest temperature attained by a superconductor is : ( UP Lower Sub. (pre) 2013 )
question-the-highest-temperature-attained-by-a-superconductor-is-up-lower-sub-pre-2013
Question : Electric conduction in a semiconductor takes place due to - ( Utt PCS (pre) 2016 )
question-electric-conduction-in-a-semiconductor-takes-place-due-to-utt-pcs-pre-2016
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