engineering physics MCQ #1248

A rectangular coil of area 0.2 m² is placed in a magnetic field of 0.1 T. If it's rotated by 90° in 0.2 s, find induced emf.

engineering physics MCQ #1248

  1. Question 1

    Q1. A rectangular coil of area 0.2 m² is placed in a magnetic field of 0.1 T. If it's rotated by 90° in 0.2 s, find induced emf.

    • A) 0.1 V
    • B) 0.2 V
    • C) 0 V
    • D) 0.05 V

    Answer: 0.1 V

    Explanation: ε = -N(dϕ/dt) = -1 * 0.2 * 0.1 / 0.2 = 0.1 V.