A moving coil galvanometer can measure a current of `10^(-6)` A. What is the resistance of the shunt required if it is to measure 1A ?

Explanation

Galvanometer current `(i_(g))=10^(-6)A`
`i=1A`
`S=(G)/((i)/(i_(g))-1)`
`=(G)/((1)/(10^(-6))-1)`
`S=(G)/(10^(-6)-1)`
`S=(G)/(99, 999) Omega`