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AP EAMCET202521 May 2025Evening ShiftPhysicsElectromagnetic InductionActual

A horizontal telegraph wire of length 30 m spread east to west fell down freely from a height of 20 m. If the resistance of the wire is 40 and the horizontal component of the earth's magnetic field at the place is 2 10⁻⁵ ~T , then the induced current when the wire reaches the ground is (Acceleration due to gravity =10 ~m ~s ⁻² )

Options

  1. A0.3 mA
  2. B3 mA
  3. C3 A
  4. D0.03 A

Correct answer

A. 0.3 mA

Step-by-step solution

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