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Write the principle of working of an electric motor. Explain the function of Armature.

Answer»

ong>Answer:

An electric MOTOR works on the principle that when a rectangular coil is placed in a magnetic field and current is passed through it, a force acts on the coil which rotates it continuously. It is based on Fleming's left hand RULE. (c ) (i) Armature . It is the rotating part of a motor.

⟹ Principle of WORKING of electric motor: A coil carrying electric current placed in an EXTERNAL magnetic field experiences a force.

⟹ Function of armature: Enhances the power of the motor and induces motion.

⟹ Function of BRUSHES: Helps easy transfer of charge between the coil and the external circuit.

⟹ Function of split rings: Reverses the direction of current after each half rotation of the coil so that the coil can keep rotating continuously.



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