Question:
An electric motor converts electrical energy to mechanical energy
The working of the motor is based on mutual induction
An electric motor converts electrical energy to mechanical energy
The working of the motor is based on mutual induction
Updated On: Jul 6, 2022
- If both assertion and reason are true and reason is the correct explanation of assertion
- If both assertion and reason are true but reason is not the correct explanation of assertion
- If assertion is true but reason is false
- If both assertion and reason are false
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The Correct Option is D
Solution and Explanation
A dc motor converts electric energy into mechanical energy. The principle on which it is based is not mutual induction. A current carrying coil, in a magnetic field experiences a torque. This torque rotates the coil. The dc motor is based on the interaction of current and magnetic field
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Concepts Used:
Electromagnetic Induction
Electromagnetic Induction is a current produced by the voltage production due to a changing magnetic field. This happens in one of the two conditions:-
- When we place the conductor in a changing magnetic field.
- When the conductor constantly moves in a stationary field.
Formula:
The electromagnetic induction is mathematically represented as:-
e=N × d∅.dt
Where
- e = induced voltage
- N = number of turns in the coil
- Φ = Magnetic flux (This is the amount of magnetic field present on the surface)
- t = time
Applications of Electromagnetic Induction
- Electromagnetic induction in AC generator
- Electrical Transformers
- Magnetic Flow Meter