Find the magnitude of the magnetic fieldat the center of an equilateral triangular loop of side length 1m which is carrying a current of 10A. ( Take `mu_(0) = 4pi xx 10^(-7) NA^(-2))`

Options

A. `3muT`
B. `9muT`
C. `1muT`
D. `18 muT`

Answer

D

Explanation

`B_(P)=3xx(mu_(0)I)/(4 pi d)[ sin 60^(@)+sin 60^(@)]`
`d=1/(2sqrt(3))impliesB_(p)=18xx10^(-6)T=18 muT`