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Question
Explain the working of an electric motor?
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Solution
DC MOTOR: It is an electrical machine that converts electrical energy into mechanical energy.
Principle: It is based on the fact that a current-carrying coil placed in the magnetic field experiences a torque.
On passing a current through the coil, all sides of coil experience a force due to the field of the bar magnet. As it can be found out using Fleming's rule, the force exerted on the two sides AB and CD will be opposite in direction causing rotation of the coil. There is a shaft connected to the coil which starts rotating along with the coil.
DC MOTOR: It is an electrical machine that converts electrical energy into mechanical energy.
Principle: It is based on the fact that a current-carrying coil placed in the magnetic field experiences a torque.
On passing a current through the coil, all sides of coil experience a force due to the field of the bar magnet. As it can be found out using Fleming's rule, the force exerted on the two sides AB and CD will be opposite in direction causing rotation of the coil. There is a shaft connected to the coil which starts rotating along with the coil.
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