MDCAT Physics MCQ #164

An AC circuit has a voltage of 120 V and a current of 2 A. If the power factor is 0.75, what is the power consumed?

MDCAT Physics MCQ #164

  1. Question 1

    Q1. An AC circuit has a voltage of 120 V and a current of 2 A. If the power factor is 0.75, what is the power consumed?

    • A) 60 W
    • B) 80 W
    • C) 90 W
    • D) 120 W

    Answer: 90 W

    Explanation: The correct answer is 90 W because P = V * I * cos(θ), and cos(θ) is 0.75. Option A assumes cos(θ) is 0.5, option B assumes cos(θ) is 0.8, and option D assumes cos(θ) is 1.