Question

In the arrangement shown in figure there are two coils wound on a nontonducting cylindrical
nad Innually the key is not inserted in the circut. Later the key is mented and then removed
shonly after ​

Answer 1

Answer:

There is slight momentarily deflection in the galvanometer as the current got induced in the secondary coil. But when the key was kept stationary their was no deflection. When the key was removed, there was a momentarily deflection again in the galvanometer but this time in the opposite direction. So these are the two observations that can be noted from the galvanometer reading .