A) (a) strength of magnet
B) (b) torsional constant of spring
C) number of turns in coil
D) area of coil
Correct Answer: B
Solution :
(b) torsional constant of spring Current sensitivity of galvanometer \[\frac{\phi }{l}={{S}_{i}}=\frac{NBA}{k}\] Hence, to increase (current sensitivity) \[{{S}_{p}}\] (torsional constant of spring) k must be decreased.You need to login to perform this action.
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