Numerical explaning Swamping Resistance used in Moving Coil Ammeter (05:46)

Lecture Notes :-

Q. A Manganin swap resistance is connected in series with a
moving coil ammeter consisting of a milli-ammeter and a
suitable shunt in order to [2003]

(a) minimise the effect of temperature variation

(b) obtain large deflecting torque

(c) reduce the size of the meter

(d) minimise the effect of stray magnetic fields

Ans.

Option (a) is the correct answer.