Question: Derive an expression for the torque of a moving-iron ammeter. The inductance of a certain moving iron ammeter is (8 + 40-%202) H where

Derive an expression for the torque of a moving-iron ammeter. The inductance of a certain moving iron ammeter is (8 + 40-%202) H where 0 is the deflection in radians from the zero position. The control spring torque is 12x 10-6 N-m/rad. Calculate the scale position in radians for a current of 3A.

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The torque developed in a movingiron ammeter is given by the expression T Ki2 Where T is the torque ... View full answer

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