A device that transforms electrical energy into mechanical energy is called a (d) motor.
A motor is a device that utilizes electrical energy to get mechanical energy or movements. There is a coil on the magnetic field in a motor device. Since the electrical energy or voltage is applied to the motor, The coil in the motor will rotate and generate mechanical energy.
Usually, the motor device has efficiency on its device. The efficiency of the motor is defined as
η = Eo / Ei
where η is efficiency, Eo is output energy (mechanical energy) and Ei is input energy (electrical energy).
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