MDCAT Physics MCQ #995

A magnetic flux of 0.4 Wb is linked with a coil of 100 turns. If the flux is reversed in 0.2 s, what is the average induced EMF?

MDCAT Physics MCQ #995

  1. Question 1

    Q1. A magnetic flux of 0.4 Wb is linked with a coil of 100 turns. If the flux is reversed in 0.2 s, what is the average induced EMF?

    • A) 400 V
    • B) 200 V
    • C) 100 V
    • D) 50 V

    Answer: 400 V

    Explanation: ε = N(dΦ/dt) = 100 x (0.8/0.2) = 400 V. Option B is wrong due to incorrect flux change.