Define current sensitivity and voltage s...

Define current sensitivity and voltage sensitivity of a moving coil galvanometer. How can a galvanometer be made more sensitive?

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The sensitivity of a moving coil galvanometer depends on

the angle of deflection

earths magnetic field

torsional constant of the spring

the moment of inertia of the coil

Sensitivity of a moving coil galvanometer increases as:

number of turns decreases

number of turns increases

torsional rigidity increases

area of coil decreases

Sensitivity of a moving coil galvanometer can be increased by

decreasing the number of turns of coil

increasing the number of turns of coil

decreasing the area of a coil

by using a weak magnet