Question

\a moving coil instrument has a resistance of 0.6 o and full scale deflection at 0.1 to convert it into an ammeter of 0-15 a range, the resistance of shunt should be

Answer 1

Let G be the resistance of the galvanometer and Ig be the current for full scale deflection in the galvanometer, the value of the shunt resistance required to convert the galvanometer into an ammeter of 0 to I ampere is in file


and we get shuny resistance 0.004 ohm