Question

The deflection in a moving coil galvanometer is

• A. (a) Directly proportional to the torsional constant
• A. (b) Directly proportional to the number of turns in the coil
• A. (c) Inversely proportional to the area of the coil
• A. (d) Inversely proportional to the current flowing

Answer 1

(b)

Sol. $\theta = \frac { N i A B } { C } \Rightarrow \theta \propto N$

(Number of turns)