Electric Power Multiple Choice Questions (MCQ) PDF Download

MCQ 1: Watt is equal to one

1. joule per second
2. meter per second
3. ampere per second
4. farad per second

MCQ 2: If the resistance of an electric bulb is 500 Ω and voltage across its ends is 250 V then power consumed by it is

1. 130 W
2. 125 W
3. 120 W
4. 200 W

MCQ 3: If a light bulb is switched on for 20 s and it consumes 2400 J of electrical energy then it's power is

1. 60 W
2. 70 W
3. 80 W
4. 90 W

MCQ 4: The amount of energy supplied by the current in unit time is called

1. electric energy
2. friction
3. resistance
4. Electric power

MCQ 5: (Electrical energy/time) is equal to

1. potential difference
2. flow of light
3. flow of heat
4. electric power