Measurements and Instrumentation - Engineering

Q1:

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

A φse ise + φsh ish

B φsh ise - φse ish

C φsh ish - φse ise

D φsh ish + φse ise

ANS:B - φsh ise - φse ish

No answer description is available.