A spherical surface of radius 'r' is enclosing the north pole of a bar magnet as shown below. The magnetic flux through the spherical surface is
1
inifinity
2
\(\frac{\mu_0}{4\pi r}\)
3
\(2\pi \mu_0r\)
4
zero
A spherical surface of radius 'r' is enclosing the north pole of a bar magnet as shown below. The magnetic flux through the spherical surface is