A 100 W bulb is used for 5 hours. How much energy does it consume in kWh?
Q1. A 100 W bulb is used for 5 hours. How much energy does it consume in kWh?
Answer: 0.5 kWh
Explanation: Energy consumed = Power * Time = 100 W * 5 h = 500 Wh = 0.5 kWh. Option A is incorrect because it underestimates the energy consumption.