Working of Electric Motor | Electricity | Physics | Class 10

The electric motor is a phenomenal example of how Fleming’s Left-hand rule works, Electrical energy is converted into mechanical energy by using an electric motor. In an electric motor, a rectangular coil is suspended between the two poles- North and south of a magnetic field. The electric supply to the coil is connected to a commutator- a device which reverses the direction of flow of electric current through a circuit.

When an electric current is supplied to the coil of the electric motor, it gets deflected because of the magnetic field. As it reaches the halfway, the split ring which acts as commutator reverses the direction of flow of electric current. When the direction of current reverses the direction of forces acting on the coil also gets reversed. Thus here the change in direction of force pushes the coil, and it moves another half turn. Finally, the coil completes its one rotation around the axle. Continuation of this process keeps the motor in rotation motion.

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