Physics · Electric Motors
Which of the following speed control methods are used in universal motors? (1) By connecting a variable resistance R in series with the motor. (2) A field pole is tapped at different points and the speed is controlled by varying the field intensity. (3) Using a centrifugal mechanism.
- 1(1) and (3)
- 2(1) and (2)
- 3(2) and (3)
- 4(1), (2) and (3)✓
Correct answer
(1), (2) and (3)
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