Q. The deflection in a moving coil galvanometer is
A) Directly proportional to the torsional constant
B) Directly proportional to the number of turns in the coil
C) Inversely proportional to the area of the coil
D) Inversely proportional to the current flowing
Explanation
(b) $i = \frac{k}{n\ BA}\theta\ \ \ \ \ \ or\ \ \theta = \frac{n\ BA}{k}\ ie,\ \theta\ \propto n.$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.