engineering physics MCQ #1260

A rectangular coil of 100 turns, area 0.01 m² is rotated at 50 Hz in a field of 0.1 T. What is the peak emf?

engineering physics MCQ #1260

  1. Question 1

    Q1. A rectangular coil of 100 turns, area 0.01 m² is rotated at 50 Hz in a field of 0.1 T. What is the peak emf?

    • A) 31.4 V
    • B) 3.14 V
    • C) 314 V
    • D) 0.314 V

    Answer: 31.4 V

    Explanation: ε = NABω = 100 * 0.01 * 0.1 * 2 * π * 50 = 31.4 V.