1.

Resistance of galvanometer is G. If shunt required to make its range n times is S, n = _____ .

Answer»

`G/S`
`1-G/S`
`1+G/S`
`S/G`

Solution :Shunt JOINED with GALVANOMETER = S = `(GI_(G))/(I-I_(G))`
Here, `I=nI_(G)`
`thereforeS=(GI_(G))/(nI_(G)-I_(G))=G/(n-1)`
`thereforen-1=G/S""thereforen=G/S+1`


Discussion

No Comment Found

Related InterviewSolutions