MDCAT Physics MCQ #165

A 100 Hz AC generator produces a voltage of 100 V. If the current through a 2 Ω resistor is 5 A, what is the power factor in this circuit?

MDCAT Physics MCQ #165

  1. Question 1

    Q1. A 100 Hz AC generator produces a voltage of 100 V. If the current through a 2 Ω resistor is 5 A, what is the power factor in this circuit?

    • A) 0.5
    • B) 0.7
    • C) 0.9
    • D) cos(θ)

    Answer: 0.5

    Explanation: The correct answer is 0.5 because cos(θ) is the definition of the power factor. Option B is an incorrect assumption, option C is an overestimation, and option D is the correct formula but not the correct answer.