Category: Current Electricity

Resistance of a conductor depends upon_________________?

Hamad Current Electricity 08/08/2021

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A. nature of conductor
B. dimension of conductor
C. physical state of the conductor
D. all of above

Reciprocal of resistivity is called__________________?

Hamad Current Electricity 08/06/2021

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A. resistance
B. inductance
C. conductivity
D. flexibility

Three equal resistors connected in series with a source of e m f together dissipate 10 W of power each. What will be the power dissipated if the same resistors are connected in parallel across the same source of e m f ?

Hamad Current Electricity 07/06/2021

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A. 40 W
B. 90W
C. 100W
D. 120W

In the following figure, the terminal potential is ___________________ ?

Hamad Current Electricity 23/05/2021

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A. zero
B. 2V
C. 12V
D. 36V

Which one of the following bulbs has the least resistance ?

Hamad Current Electricity 22/05/2021

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A. 100 watt
B. 200 watt
C. 300 watt
D. 60 watt

An electric iron is marked 20 volts 500W. The units consumed by it in using if for 24 hours will be______________?

Hamad Current Electricity 08/04/2021

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A. 12
B. 24
C. 5
D. 1100

Resistance of a wire on increasing its temperature will_________________?

Hamad Current Electricity 20/03/2021

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A. increase with rise in temperature
B. decrease with rise in temperature
C. will remain same
D. depends upon altitude of experimentation

Resistance of an ideal insulator is __________________?

Hamad Current Electricity 09/02/2021

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A. infinite
B. zero
C. finite
D. depends upon nature

The current through a metallic conductor is due to the motion of _________________?

Hamad Current Electricity 30/01/2021

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A. free electrons
B. protons
C. neutrons
D. still under controversy

An immersion heater of 400 watts kept on for 5 hours will consume electrical power of __________________?

Hamad Current Electricity 07/01/2021

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A. 2KWh
B. 20KWh
C. 6KWh
D. 12KWh