A galvanometer of resistance `25Omega` is connected to a battery of 2 volt along with a
Channel: Doubtnut
Date: 2020-08-02

A galvanometer of resistance `25Omega` is connected to a battery of 2 volt along with a resistance in series. When the value of this resistance is `3000Omega`, a full scale deflection of 30 units is obtained in the galvanometer. In order to reduce this deflection to 20 units, the resistance in series will be