The speed and torque of induction motors can be varied by which of the following means: 1. Stator voltage control 2. Rotor voltage control 3. Frequency control

The speed and torque of induction motors can be varied by which of the

1.	The speed and torque of induction motors can be varied by which of the following means: 1. Stator voltage control 2. Rotor voltage control 3. Frequency control
A.	1 only
B.	2 only
C.	1 and 2 only
D.	1, 2 and 3
Answer» E.

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The speed and torque of induction motors can be varied by which of the following means: 1. Stator voltage control 2. Rotor voltage control 3. Frequency control

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