7. To Determine Resistance of A Galvanometer by Half-Deflection Method and to Find its Figure of Merit

To determine resistance of a galvanometer by half-deflection method and to find its figure of merit

How to determine resistance of a galvanometer by half-deflection method and to find its figure of merit.

PRACTICAL EXAM – 2024

THEORY

Galvanometer Resistance =

PROBLEM

A coil of diameter 2 cm and having 1000 turns is placed in a perpendicular magnetic field of 2 tesla. Find the angle through which one coil will turn when a current of 1 mA passes through it. [Take the twisting couple per unit angular twist of the suspension fibre, C = 10 power (-5) Nm/Rad]