The current sensitivity of a galvanometer can be increased by :
(A) decreasing the number of turns
(B) increasing the magnetic field
(C) decreasing the area of the coil
(D) decreasing the torsional constant of the spring

Question

Choose the most appropriate answer from the options given below :

TestHub · Accepted Answer

The current in the galvanometer is calculated by i = K N A B θ . Therefore, the sensitivity of the galvanometer, d θ d i = N A B K Hence, only options B and D are correct.

Physics - Magnetism Question with Solution | TestHub

Options:

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