# Category: Current Electricity

## Electrical energy is converted to heat at the rate of___________________? A. IRt
B. I2R
C. I2Rt
D. VIt

## If 1 ampere current flows through 2m long conductor the charge flow through it in 1 hour will be_______________? A. 3600C
B. 7200C
C. 1C
D. 2C

## Electrical energy is measured in___________________? A. watt
B. horse power
C. kilo watt
D. kilowatt hour

## Resistance of a super conductor is ______________________? A. finite
B. infinite
C. zero
D. changes with every conductor

## Resistance of a conductor depends upon_________________? A. nature of conductor
B. dimension of conductor
C. physical state of the conductor
D. all of above

## Reciprocal of resistivity is called__________________? 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 ? A. 40 W
B. 90W
C. 100W
D. 120W

## In the following figure, the terminal potential is ___________________ ? A. zero
B. 2V
C. 12V
D. 36V

## Which one of the following bulbs has the least resistance ? 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______________? A. 12
B. 24
C. 5
D. 1100