Physics · Electrical Measuring Instruments
What is the purpose of the two voltage (pressure) coils fixed at right angles to each other in an electrodynamometer type power factor meter?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1To create a rotating magnetic field for phase angle measurement✓
- 2To measure power factor at two different frequencies
- 3To measure active and reactive power independently
- 4To improve measurement accuracy in DC circuits
Correct answer
To create a rotating magnetic field for phase angle measurement
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