engineering physics MCQ #1269

The current in a coil changes from 1 A to 2 A in 0.1 s. If the induced emf is 10 V, the self-inductance is

engineering physics MCQ #1269

  1. Question 1

    Q1. The current in a coil changes from 1 A to 2 A in 0.1 s. If the induced emf is 10 V, the self-inductance is

    • A) 1 H
    • B) 0.1 H
    • C) 10 H
    • D) 0.01 H

    Answer: 1 H

    Explanation: ε = -L(dI/dt), 10 = L * (2-1)/0.1, L = 1 H.