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Sagot :
Answer: The correct option is B.
Explanation:
An electric motor is a device which converts the electrical energy into mechanical energy.
Direct current: In direct current, the current flows in one direction only.
Alternating current: In alternating current, the direction of the current changes periodically.
An electric motor uses alternating current. The mechanical energy is made from utilizing the force which is exerted by rotating magnetic field produced by AC. It flows through its coil.
Therefore, the correct option is B.
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