A galvanometer of resistance `100 Omega` gives full scale deflection at 10m A current . What should be the value of shut so that it can measure a current of 100m A ?

Answer

`sqrt13m, ((14)/(5),(19)/(5))`

Explanation

Length of rod `=sqrt((4 - 2)^(2) + (2 - 5)^(2)) = sqrt13m`
`x_(cm) = ((3 xx 2) + (2 xx 4))/(3 + 2) = (14)/(5), y_(cm) = ((3 xx 5) + (2 xx 2))/(3 + 2) = (19)/(5)`