Question

A moving coil galvanometer is to be designed so that when a current of 20 mA passes through the coil, the torque exerted on the coil is 1.2 x 10^-3 Nm. The coil is rectangular in shape with effective dimensions 30 mm x 20 mm and lies in a radial field of strength 0.8 T. Calculate the number of turns that should be wound on the coil.​

Answer 1

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