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Three Phase Induction Motors

Three Phase Induction Motors
In the circle diagram for induction motor, the diameter of the circle represents

Running torque
Slip
Rotor current
Line voltage

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Three Phase Induction Motors
An induction motor is

Non self starting
Self starting with high torque
Self starting with zero torque
Self starting with low torque

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Three Phase Induction Motors
The term cogging is associated with

Induction motors
Dc series motors
Three phase transformer
Compound generators

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Three Phase Induction Motors
The speed of a squirrel cage induction motor is changed by

Cascade control
None of the listed here
Pole changing
Rheostatic control

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Three Phase Induction Motors
The rotor of induction motor

Always revolves in the direction opposite to stator flux
Insufficient data
None of the listed here
Always revolves in the direction of stator flux

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Three Phase Induction Motors
In a squirrel cage induction motor, the number of stator slots is _______ rotor slots.

Always eqaul to the number of
Always less than the number of
Always greater than the number of
Either more or less than the number of

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