Question

What happens to the reading in the galvanometer when a current is passed through coil 1 ​

Answer 1

Explanation:

explanation :- when the key is plugged in the coil C₁, flow of the electric current increase in the coil C₁. due to increase in electric current, increase in magnetic field strength in the coil C₁. ... when current pass through the galvanometer it gives a deflection but in opposite direction.