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If the no load test is conducted at its rated frequency but less than the rated voltage, then the wattmeter reading will be ____________

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If the no load test is conducted at its rated frequency but less than the rated voltage, then the wattmeter reading will be ____________

(a) reduced

(b) more than previous reading

(c) remain same

(d) none of the mentioned

I got this question by my college director while I was bunking the class.

I want to ask this question from Circle Diagrams of Induction Machines topic in portion Induction Machines of Electrical Machines

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Best answer
Right choice is (a) reduced

Explanation: No load losses will reduce, so the power consumption.

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