Physics, asked by tanisha19012005, 8 months ago

what are the principles of DC motor and AC generator?? why their is different principles?? ​

Answers

Answered by stvmas21
1

Explanation:

A.C Generator

The value of the voltage generated in A.C. generator depends on the number of turns in the coil that is placed in the magnetic field, strength of the magnetic field of the magnet, and the speed of the rotation of coil in field. In A.C. generator, the coil is rotated in the magnetic field of a magnet and it produces current.

D.C. Motor

In D.C. motor, current is provided to the coil and it rotates in the magnetic field. This rotation is used in doing some work. Torque of coil is increased if the current or magnetic field is increased.

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Answered by yash3374
0

Answer:

Hey mates

Here is your answer

Operating Principle

DC motors operate on Faraday's principle of electromagnetism which states that a current-carrying conductor experiences a force when placed in a magnetic field.

AC generators work on the principle of Faraday's law of electromagnetic induction which states that electromotive force -EMF or voltage – is generated in a current carrying conductor that cuts a uniform magnetic field.

In a DC generator, the electrical current flows only in one direction. In an AC generator, the coil through which the current flows is fixed while the magnet moves. The construction is simple and costs are less. In a DC generator, the coil through which the current flows rotates in a fixed field.

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