In moving coil galvanometer the deflection \( (\Phi) \) on P the sc...

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In moving coil galvanometer the deflection \( (\Phi) \) on
P
the scale by a pointer attached to the spring is
W
(1) \( \left(\frac{\mathrm{NA}}{\mathrm{kB}}\right) \mathrm{I} \)
(2) \( \left(\frac{\mathrm{NA}}{\mathrm{kAB}}\right) \mathrm{I} \)
(3) \( \left(\frac{\mathrm{NAB}}{\mathrm{k}}\right) \mathrm{I} \)
(4) \( \left(\frac{\mathrm{NAB}}{\mathrm{kI}}\right) \)
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