Question

what is cuttent sensitivity? How it can increased???​

Answer 1

Answer:

Current sensitivity can be increased by increasing the number of turns of the coil. ... Since voltage sensitivity decreases with increase in resistance of the coil, the effect of increase in number of turns is nullified in the case of voltage sensitivity.

Answer 2

Answer:

Current sensitivity of galvanometer is the deflection caused in the coil of the galvanometer per unit flow of electric current through it. Current sensitivity = θ/I = NBA/k. Here, B is the strength of the magnetic field in which the coil is suspended. A is the area of the coil.

Current sensitivity can be increased by increasing the number of turns of the coil. ... Since voltage sensitivity decreases with increase in resistance of the coil, the effect of increase in number of turns is nullified in the case of voltage sensitivity.

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