Electrical Engineering · Measuring Instruments
Permanent Magnet Moving Coil (PMMC) instruments are generally used for DC measurements because:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Their deflecting torque reverses direction in alternating current (AC)✓
- 2They consume very high electrical power
- 3Their pointer remains fixed permanently
- 4Their scale is non-linear
Correct answer
Their deflecting torque reverses direction in alternating current (AC)
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