Question

On what factors, current sensitivity voltage sensitivity of
a galvanometer depend?
​

Answer 1

it depends on numbers of turns coils area restoring force per unit twist and magnetic fields

hope it helps

Answer 2

That depends upon several factors

1. Number of turns of coil
2. Current flowing through the galvanometer
3. Torsion constant of suspension fibre
4. Strength of magnetic field
5. Restoring force.