The damping force acts on the moving system of an indicating instruments only when it is
A)moving
B)stationary
C)near its full scale deflection
D)just staring to move

Question

Quizplus · Accepted Answer

The damping force is designed to reduce oscillations or vibrations within the system, and it only acts when the system is in motion to bring it to a rest position more quickly and accurately. Stationary systems or those just starting to move do not experience damping force because it is specifically meant to counteract existing motion.

The Damping Force Acts on the Moving System of an Indicating