MDCAT Physics MCQ #175

Suppose an AC circuit has a resistance of 25 Ω and a capacitive reactance of 20 Ω. What is the power factor in this circuit?

MDCAT Physics MCQ #175

  1. Question 1

    Q1. Suppose an AC circuit has a resistance of 25 Ω and a capacitive reactance of 20 Ω. What is the power factor in this circuit?

    • A) 0.8
    • B) 0.9
    • C) cos(θ)
    • D) sin(θ)

    Answer: cos(θ)

    Explanation: The correct answer is cos(θ) because it represents the real power component. Option A is an incorrect assumption, option B is an overestimation, and option D is the imaginary power component.