A galvanometer of resistance 30 2 is connected to a battery of emf 2 V
Channel: Doubtnut
Date: 2020-05-17

A galvanometer of resistance 30 2 is connected to a battery of emf 2 V with 1970 Q resistance in series. A full scale deflection of 20 divisions is obtained in the galvanometer. To reduce the deflection to 10 divisions, the resistance in series required is