engineering physics MCQ #1224

A rectangular coil of 100 turns, area 0.1 m², is rotated at 50 rev/s in a magnetic field of 0.01 T. Maximum induced emf is

engineering physics MCQ #1224

  1. Question 1

    Q1. A rectangular coil of 100 turns, area 0.1 m², is rotated at 50 rev/s in a magnetic field of 0.01 T. Maximum induced emf is

    • A) 10π V
    • B) 20π V
    • C) 30π V
    • D) 40π V

    Answer: 10π V

    Explanation: Maximum emf = NAB ω with ω = 2πf. Here f = 50, so ω = 100π. NAB = 100 × 0.1 × 0.01 = 0.1. Emf = 0.1 × 100π = 10π V.