Physics · Electrical Instruments
What is the primary purpose of using two voltage (pressure) coils 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 supply frequencies
- 3To measure active and reactive power simultaneously
- 4To improve measurement accuracy in high-voltage DC circuits
Correct answer
To create a rotating magnetic field for phase angle measurement
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