What are the two observations that can be noted from the galvanometer reading?

Question

In the arrangement shown in figure there are two coils wound on a nonconducting cylindrical rod. Initially the key is not inserted in the circuit. Later the key is inserted and then removed shortly after.

What are the two observations that can be noted from the galvanometer reading?

Answer 1

There are momentary galvanometer deflections that die out shortly; the deflections are in opposite directions.