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In a Dynamometer type wattmeter, the fixed coil is split into ________(a) 4(b) 3(c) 2(d) 1The question was posed to me in an interview for internship.I'd like to ask this question from Dynamometer Type Wattmeter in chapter Measurement of Power and Related Parameters of Electrical Measurements

Answer»

The correct choice is (c) 2

To explain: When a Dynamometer TYPE wattmeter is used for the measurement of A.C. power, the fixed coil is split into two equal PARTS. The two parts are air-cored to AVOID hysteresis LOSS.



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