The application of an electric motor is to

  1. convert voltage into current
  2. transfer charge into current
  3. transfer electrical energy into mechanical energy
  4. convert current into voltage

Answer (Detailed Solution Below)

Option 3 : transfer electrical energy into mechanical energy
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Detailed Solution

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CONCEPT:

  • Electric motor: The device in which electrical energy is converted into mechanical energy is called an electric motor.
  • An electrical motor is connected to the battery as shown below:

F1 J.S Madhu 04.06.20 D3

  • From this, we can say that first, the battery will convert chemical energy to electrical energy as soon as the circuit is turned on and this electrical energy will be converted into mechanical energy by an electrical motor.

EXPLANATION:

  • From the above, it is clear that an electric motor is used to convert A.C. into mechanical energy. Therefore option 3 is correct.
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