Physics · Electrical Measurements
Which type of electrical measuring instrument remains entirely unaffected by frequency variations?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Moving Iron Instruments
- 2Permanent Magnet Moving Coil (PMMC) Instruments✓
- 3Electro-dynamometer Instruments (EMMC)
- 4Electrostatic Instruments
Correct answer
Permanent Magnet Moving Coil (PMMC) Instruments
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