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AP EAMCET202523 May 2025Morning ShiftPhysicsElectromagnetic InductionActual

If a wheel with 24 metallic spokes each 40 cm long is rotated with a speed of 180 rev / min in a plane normal to the horizontal component of earth's magnetic field, the emf induced between the axle and the rim of the wheel is E. If the number of spokes is made 12 and the wheel is rotated with a speed of 90 rev / min in the same field, the induced emf is

Options

  1. AE
  2. B2E
  3. C4E
  4. D0.5 E

Correct answer

D. 0.5 E

Step-by-step solution

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