MDCAT Physics MCQ #939

A 40-year-old engineer is designing a generator using a rotating coil. What is the minimum speed required for the coil to induce a voltage?

MDCAT Physics MCQ #939

  1. Question 1

    Q1. A 40-year-old engineer is designing a generator using a rotating coil. What is the minimum speed required for the coil to induce a voltage?

    • A) Zero RPM
    • B) 1 RPM
    • C) 10 RPM
    • D) 50 RPM

    Answer: 1 RPM

    Explanation: A coil rotating at 1 RPM can induce a voltage, but the induced voltage decreases with increased speed. Zero RPM means no rotation, 10 RPM and 50 RPM are higher speeds, and a coil must rotate to induce a voltage.