Question

The current sensitivity of a moving coil galvanometer depends on(a) the number of turns in the coil(b) moment of inertia of the coil(c) current sent through galvanometer(d) eddy current in Al frame

Answer 1

d) eddy current in Al frame

Thanks

Answer 2

Answer:

Explanation:

A galvanometer is said to be sensitive, when it gives a large deflection. The deflection being caused even if a small current is passed through it or when a small voltage is applied across the coil. 

The current sensitivity of a moving coil is described as the deflection  produced in the galvanometer on passing a unit current through its coil,

Example =  θ/I = NBA/K

where, K is a torsion constant for galvanometer.

N is the number of turns

B is the magnetic field and

θ is the angle by which torque displace the coil.