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Mechanically air gaps in induction motor are kept very low to avoid _________

(a) lower power factor

(b) lagging nature

(c) magnetizing current

(d) all of the mentioned

The question was asked in final exam.

Enquiry is from Induction Motor as a Transformer in section Induction Machines of Electrical Machines

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Correct option is (d) all of the mentioned

Easy explanation: Air gap is kept lower to avoid the low value power factor, lagging behaviour and to reduce the magnetizing current.

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