MCQ- 5 ICSE Physics class 10 ch-4 Electricity and Magnetism

Numericals on Electrical Power and Energy - Class 10

1. A 60W bulb is used for 5 hours. How much energy is consumed?

240 Wh
300 Wh
100 Wh
60 Wh

Correct Answer: 300 Wh

2. An electric iron draws a current of 5A from a 220V supply. What is its power rating?

1000 W
1100 W
550 W
2200 W

Correct Answer: 1100 W

3. A device consumes 2400 J of energy in 2 minutes. What is its power?

10 W
20 W
40 W
5 W

Correct Answer: 20 W

4. What is the energy consumed by a 100W bulb in 10 hours?

500 Wh
1000 Wh
200 Wh
800 Wh

Correct Answer: 1000 Wh

5. A heater of 1500W operates for 2 hours. What is the energy consumed in kWh?

1 kWh
3 kWh
2 kWh
4 kWh

Correct Answer: 3 kWh