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The dynamo is a device for converting

  • A.Heat energy into electrical energy
  • B.Mechanical energy into electrical energy
  • C.Magnetic energy into electrical energy
  • D.None of the above

Answer: B

A dynamo converts mechanical energy into electrical energy. A coil rotated in a magnetic field has a current induced in it, by Faraday's law of electromagnetic induction.

The reverse device, converting electrical energy into mechanical, is the electric motor.

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