Resistance of pressure coil in a low power factor dynamometer type wattmeter is ________(a) once time(b) three times(c) hundred times(d) ten timesThe question was asked during an interview for a job.My question is based upon Low Power Factor Wattmeter in division Measurement of Power and Related Parameters of Electrical Measurements

Resistance of pressure coil in a low power factor dynamometer type wat

1.	Resistance of pressure coil in a low power factor dynamometer type wattmeter is ________(a) once time(b) three times(c) hundred times(d) ten timesThe question was asked during an interview for a job.My question is based upon Low Power Factor Wattmeter in division Measurement of Power and Related Parameters of Electrical Measurements
Answer» The correct answer is (d) ten times The best explanation: In a low power factor dynamometer TYPE wattmeter, PRESSURE coil has a resistance VALUE that is ONE tenth of the actual with respect to unity power wattmeters. This is done in order to ENSURE a reasonable amount of torque at low power factors.

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