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Question

A universal motor can be operated on 220 V DC as well as 220 V single phase AC. Which of the following will be same in the two cases?

A.

Operating speed

B.

Power output

C.

Operating speed and power output

D.

None of the above

Answer ( Option D)

None of the above

Solution

The universal motor is a type of electric motor that can operate on either AC or DC power and uses an electromagnet by its stator to create its magnetic field.

The above diagram shows the speed torque characteristics of a universal motor, which shows neither speed nor power output will be same for AC and DC.

Hence, the correct option is (D).

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