MDCAT Physics MCQ #90

Why does a low power factor in an AC circuit increase energy losses?

MDCAT Physics MCQ #90

  1. Question 1

    Q1. Why does a low power factor in an AC circuit increase energy losses?

    • A) More reactive power circulates
    • B) Voltage drops exceed safe limits
    • C) Current becomes out of phase
    • D) Resistive heating multiplies

    Answer: More reactive power circulates

    Explanation: Low power factor means more reactive power (VAr) circulates. Option C describes a symptom, not the root cause.