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NEETPhysicsElectromagnetic Induction

What is the magnitude of the electromotive force (emf) induced in a circular coil with a radius of 10 cm, 500 turns, and resistance of 2 ohms when it is rotated about its vertical diameter through 180° in 0.25 seconds, with its plane perpendicular to the horizontal component of the Earth's magnetic field (3.0 × 10 –5 T)?

Options

  1. A3.8 × 10 –4 V
  2. B3.8 × 10 –3 V
  3. C3.8 × 10 –2 V
  4. D3.8 × 10 –1 V

Correct answer

B. 3.8 × 10 –3 V

Step-by-step solution

Correct Option is : (B) 3.8 × 10 –3 V

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