1.

A moving iron ammeter produces a full scale torque of 240μNm with deflections of 120∘ at a current of 10 A. The rate of change of self inductance (μH/radian) of the instrument at full scale is

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A moving iron ammeter produces a full scale torque of 240μNm with deflections of 120 at a current of 10 A. The rate of change of self inductance (μH/radian) of the instrument at full scale is



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