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Three Phase Induction Motors

Three Phase Induction Motors
The term cogging is associated with

Three phase transformer
Induction motors
Dc series motors
Compound generators

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Three Phase Induction Motors
The rotor winding of a 3phase wound rotor induction motor is generally _______ connected.

None of the listed here
Delta
Partly star and partly delta
Star

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Three Phase Induction Motors
For higher efficiency of 3-phase induction motor, the slip should be

As small as possible
1
Large
Very large

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Three Phase Induction Motors
The good power factor of an induction motor can be achieved if the average flux density in the air gap is

Absent
Large
Infinity
Small

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

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

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Three Phase Induction Motors
The stator of a three phase induction motor produces _______ magnetic field.

Rotating
Steady
Alternating
None of the listed here

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