Question

The sensitivity of a moving coil galvanometer can be increased by

• A. (a) Increasing the number of turns in the coil
• A. (b) Decreasing the area of the coil
• A. (c) Increasing the current in the coil
• A. (d) Introducing a soft iron core inside the coil

Answer 1

(a)

Sensitivity (S_i) = $\frac { N B A } { C }$ ⇒ $S _ { i } \propto N$.