Question

What is the principle of electric motor and electric generator?

Answer 1

motor- A current carrying conductor placed perpendicular to magnetic field experiences a force.
generator- Electromagnetic induction:- Electricity is generated by rotating a coil inside magnetic field.

Answer 2

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An electric motor is an electrical machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a wire winding to generate force in the form of rotation of a shaft.