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

Hint:

Increasing the number of turns in the coil of a galvanometer increases its current sensitivity, making it more responsive to small currents.

Answer 1

The Correct Option is A

Step 1: The current sensitivity of a galvanometer is the amount of deflection produced for a given current.
Step 2: The current sensitivity increases with the number of turns in the coil because more turns increase the magnetic flux through the coil, leading to a higher deflection for the same current.

Final Answer: \[ \boxed{\text{the number of turns in the coil}} \]