Question

How is electromagnetic damping reduced in a ballistic galvanometer?

Answer 1

The damping effect of Eddy Currents is used in some moving coil galvanometers to make them dead-beat. The coil of such galvanometres is wound on a light metal frame. ... The oscillations of moving coil ballistic Galvanometer are stopped by short circuiting the coil, this being due to the induced current in the coil itself.

Hope this helps you......