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When maximum values of the design factors are considered, what is the relation between flux and the magnetizing current?

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in Design of Electrical Machines by (687k points)
When maximum values of the design factors are considered, what is the relation between flux and the magnetizing current?

(a) flux is directly proportional to the magnetizing current

(b) flux is indirectly proportional to the magnetizing current

(c) flux is directly proportional to square of the magnetizing current

(d) flux is indirectly proportional to square of the magnetizing current

This question was addressed to me during an interview for a job.

The origin of the question is No Load Current topic in chapter Three Phase Induction Motor of Design of Electrical Machines

1 Answer

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Best answer
Right answer is (b) flux is indirectly proportional to the magnetizing current

Best explanation: The flux value is indirectly proportional to the magnetizing current. The flux is too small or rather the magnetizing current becomes high.

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