Electronics and Communication Engineering - Measurements and Instrumentation - Discussion

Discussion Forum : Measurements and Instrumentation - Section 9 (Q.No. 4)
4.
If φsh is flux of shunt magnet, φse is flux of series magnet, ish is eddy current due to φse, the torque in an induction wattmeter is proportional to
φse ise + φsh ish
φsh ise - φse ish
φsh ish - φse ise
φsh ish + φse ise
Answer: Option
Explanation:
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