MDCAT Physics MCQ #448

A 100 W bulb is used for 5 hours. How much energy does it consume in kWh?

MDCAT Physics MCQ #448

  1. Question 1

    Q1. A 100 W bulb is used for 5 hours. How much energy does it consume in kWh?

    • A) 0.1 kWh
    • B) 0.5 kWh
    • C) 1 kWh
    • D) 2 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.