Power Multiple Choice Questions with Answers – PDF Download

MCQ 1: If i is current through the circuit and E is EMF of battery then power P at which chemical energy of battery is dissipated is:

1. P=iE
2. P=i²E
3. P=i²E²
4. P=iE²

MCQ 2: If i is current through the circuit and r is resistance then power P at which power dissipated as thermal energy of the battery is:

1. P=ir
2. P=i²r
3. P=i²r²
4. P=ir²

MCQ 3: Power is a:

1. vector quantity
2. scalar quantity
3. unit vector
4. infinite quantity

MCQ 4: Rate at which force does work on object is termed as:

1. power due to force
2. acceleration due to force
3. velocity due to force
4. distance due to force

MCQ 5: When real battery of EMF E and internal resistance r does work on the charge carrier in a current i through the battery, rate P of energy transfer to the charge carrier, if V is potential, is:

1. P=iV
2. P=V/i
3. P=i/V
4. P=i+V