Question

Eddy currents are induced in solid metal parts within the thickness of the conductor.

(a) True

(b) False

I had been asked this question by my school principal while I was bunking the class.

My enquiry is from Errors in Dynamometer Wattmeter topic in division Measurement of Power and Related Parameters of Electrical Measurements

Answer 1

Correct option is (a) True

To explain: Eddy currents produce their own field. They affect the magnitude and phase of the current flowing through the current coil. This leads to errors. As a result, the wattmeter reads low values for lagging power factors and high values for leading power factors.