MDCAT Physics MCQ #667

A 220-volt, 100-watt bulb is connected to a 120-volt power source. What is its new power consumption?

MDCAT Physics MCQ #667

  1. Question 1

    Q1. A 220-volt, 100-watt bulb is connected to a 120-volt power source. What is its new power consumption?

    • A) 40 W
    • B) 60 W
    • C) 50 W
    • D) 80 W

    Answer: 60 W

    Explanation: Power consumption is directly proportional to the square of the voltage, making 60 W a plausible but incorrect answer.