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Question

How does an electric generator differ from an electric motor?


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Solution

Electric motor:
It is a type of electrical machine that converts energies from the electrical form into mechanical form. It generally takes energies from the DC or AC sources.


An electric generator differs from a motor as,
(1) An electric generator uses mechanical energy as input and converts it into electrical energy. In contrast, DC motor uses electrical energy as input and changes into mechanical energy.
(2) The generator uses Fleming's right-hand rule while the motor uses Fleming's left-hand rule.

(3) In the generator, the current is generated inside the windings of the armature while current is provided to the armature windings in the electric motors.
(4) Generators can be used in the power stations, general lighting, etc. In contrast, motors can be employed in cars, elevators, pumps, ceiling fans, etc.

(5) In generators, power grids are the energy source, etc. While in motors, energy sources are water turbines or steam turbines, etc.

Thus, the electric generator differs from an electric motor are mentioned above.


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