Electrical Machines
A smaller air gap in a induction motor helps to

 reduce the chance of cogging.
 reduce the chance of crawling.
 reduce the magnetizing current.
 increase the starting torque.

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Electrical Machines
In a step down transformer which one of the following statements is true?

  Number of secondary turns is less than primary turns.
 Secondary current is less than primary current.
 Number of secondary turns is more than that of primary.
 Secondary power is less than primary power.

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