engineering physics MCQ #1249

The self-inductance of a coil is 1 H. If current changes from 0 to 3 A in 0.3 s, find induced emf.

engineering physics MCQ #1249

  1. Question 1

    Q1. The self-inductance of a coil is 1 H. If current changes from 0 to 3 A in 0.3 s, find induced emf.

    • A) 10 V
    • B) -10 V
    • C) 5 V
    • D) -5 V

    Answer: 10 V

    Explanation: ε = -L(dI/dt) = -1 * (3 / 0.3) = 10 V.