Electrical Engineering · Electrical Instruments
Why can a Moving Iron (MI) instrument be used for both AC and DC?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Because it contains a permanent magnet
- 2Because it uses air friction damping
- 3Because its scale is non-uniform
- 4Because the deflecting torque is proportional to the square of the current✓
Correct answer
Because the deflecting torque is proportional to the square of the current
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