Two tangent galvanometer P and Q  are connected  in series and a current is passed through
Channel: Doubtnut
Date: 2020-08-30

Two tangent galvanometer P and Q  are connected  in series and a current is passed through them . Radii of coils of P and Q are in the ratio 4:3 while their number of turns are in ratio 4:9 . If the galvanometer P shows a deflection of `30^(@)` , find the deflection shown by Q.