Physics · Electrical Measuring Instruments
Moving iron (MI) instruments can be used for both AC and DC measurements because:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1They are highly frequency-dependent.
- 2The direction of deflection depends on the direction of current.
- 3They are polarised.
- 4The deflecting torque is proportional to the square of the operating current.✓
Correct answer
The deflecting torque is proportional to the square of the operating current.
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