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What powers an electric car?

Electric cars are powered by one or more electric motors, with electricity supplied by rechargeable batteries or generated by a fuel cell. In an electric car, the electric motor replaces the traditional internal-combustion engine, converting electrical energy provided by the battery or fuel cell into mechanical energy. Rotation of the motor results from interactions between magnetic fields in the motor’s stationary and rotating components; this energy is then transferred through the drivetrain to turn the wheels.