What is the value of shunt resistance required to convert a galvanometer of resistance ( 100 ) into an ammeter of range ( 1 ~A ) ? Given : Full scale deflection of the galvanometer is ( 5 ~mA ).

Step-by-step solution

Given, resistance of galvanometer ( =100 ); range of ammeter, ( I=1 ~A ); full scale deflection ( I_ g =5 ~mA =5 10⁻³ A ) Value of shunt, ( S= I_ g G I-I_ g ) Substituting the values, we get [ S= 5 10⁻³ 100 1-5 10⁻³ = 0.5 1-0.005 = 0.5 0.995 = 5 9.95 ] Therefore, value of shunt resistance is ( 5 9.95 )