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In the statement “the wattmeter commonly used for power measurement at commercial frequencies is of the X type This meter consists of two coil systems, the fixed system being the Y coil and moving system being Z coil”. X, Y and Z stand respectively for:
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- dynamometer, voltage and current
- dynamometer, current and voltage
- induction, voltage and current
- induction, current and voltage
- dynamometer, voltage and current
Correct Option: B
NA
