When a resistance of 200 is connected in series with a galvanometer of resistance ' G ', its range is ' V '. To triple its range, a resistance of 2000 is connected in series. The value of ' G ' is

Step-by-step solution

Using, R_s= V I_g -G we get, for 1₁^ st case, 200= V I _ g - R ....(i) and for 2^ nd case, 2000= 3 ~V I _ g - R ...(ii) By subtracting equation (i) from (ii) we get, array ll & V I _ g =900 & R =700 array