Consider an infinitely long straight conductor carrying current I. The magnetic field B due to this current-carrying conductor at a distance d from it is
1
\(\frac {\mu_0I}{\pi d}\)
2
\(\frac {\mu_0I}{d}\)
3
\(\frac {\mu_0I}{2\pi d}\)
4
\(\frac {2\pi \mu_0I}{ d}\)
5
Not Attempted