When `sqrt(3)` ampere current is passed in a tangent galvanometer, there is a deflection of `30^(@)` in it. The deflection obtained when 3 amperes current is passed, is

Options

A. `30^(@)`
B. `45^(@)`
C. `60^(@)`
D. `75^(@)`

Answer

B

Explanation

`i prop tantheta implies i_(1)/i_(2)=tantheta_(1)/(tantheta_(2)) implies sqrt(3)/3=(tan 30^(@))/(tantheta_(2)) implies theta=45^(@)`