Electrical Engineering · Measurements
An electrodynamometer-type wattmeter will be free from the effect of power factor and frequency variations if the:
- 1Capacitance is connected in series with the pressure coil
- 2Pressure coil inductance is zero✓
- 3Damping torque is completely absent
- 4Pressure coil resistance is zero
Correct answer
Pressure coil inductance is zero
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