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A moving coil galvanometer has the following characteristics – Number of turns of coil = 50; Area of coil = 70 mm2; Resistance of coil = 30 Ω; Flux density of radial field = 0.1 T; Torsional constant of suspension wire = 7 × 10-8 N m/rad. Calculate the current and voltage sensitivity.

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A moving coil galvanometer works on the principle that a current-carrying coil placed in a magnetic field, experiences a torque.


A moving coil galvanometer has the following characteristics – Number of turns of coil = 50; Area of coil = 70 mm<sup>2</sup>; Resistance of coil = 30 Ω; Flux density of radial field = 0.1 T; Torsional constant of suspension wire = 7 × 10<sup>-8</sup> N m/rad. Calculate the current and voltage sensitivity.






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