When the moving coil in a Dynamometer type wattmeter deflects ________(a) pointer moves(b) pointer doesn’t move(c) current flows(d) voltage is generatedI had been asked this question in a national level competition.Query is from Dynamometer Type Wattmeter topic in division Measurement of Power and Related Parameters of Electrical Measurements

When the moving coil in a Dynamometer type wattmeter deflects ________

1.	When the moving coil in a Dynamometer type wattmeter deflects ________(a) pointer moves(b) pointer doesn’t move(c) current flows(d) voltage is generatedI had been asked this question in a national level competition.Query is from Dynamometer Type Wattmeter topic in division Measurement of Power and Related Parameters of Electrical Measurements
Answer» Right answer is (a) POINTER moves For explanation: In a Dynamometer type wattmeter, when the MOVING coil deflects the pointer moves over the scale. The pointer then comes back to rest at a point where the deflecting torque EQUALS the controlling torque.

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