engineering physics MCQ #202

The voltage across an inductor is given by V = L(dI/dt). If I = 2 sin(100πt) A and L = 0.1 H, find V.

engineering physics MCQ #202

  1. Question 1

    Q1. The voltage across an inductor is given by V = L(dI/dt). If I = 2 sin(100πt) A and L = 0.1 H, find V.

    • A) 20π cos(100πt) V
    • B) 10π cos(100πt) V
    • C) 20π sin(100πt) V
    • D) 10π sin(100πt) V

    Answer: 20π cos(100πt) V

    Explanation: dI/dt = d(2 sin(100πt))/dt = 200π cos(100πt); V = 0.1 * 200π cos(100πt) = 20π cos(100πt) V.