18th November 2019


What is the difference between an AC and DC generator?

The major difference between an AC generator and a DC generator is that the DC generator requires a mechanism to provide a DC output. This can be done mechanically with a commutator or electronically with a rectifier. Internally, all generators produce an alternating voltage. All generators require a magnetic field.

Correspondingly, is a motor and a generator the same?

While the generator and the vacuum (or any other device powered by a motor) may serve different functions, they are actually two sides of the same coin. In fact, they are the same device! In an electrical motor, the input is electricity and the output is mechanical power.

What is the difference between a motor and an alternator?

Electric motor is a device which converts electric energy(AC& DC both) to mechanical energy. In simple term motor is driven by electricity either DC or AC supply whereas alternator is AC current Generator which generates the AC current required for driving the above motor if it is an AC motor.

Can you use a DC motor as a generator?

Yes, absolutely. In fact, in a brushed permanent magnet motor, no conversion needs to be done. Just spin the shaft and it generates DC voltage/current. With the DC brushless motors used in model electric airplanes and cars, the speed controller is the electronics.
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