A wire of radius 0.5 cm carries a current of 150 A that is uniformly distributed over its cross-sectional area.
The permeability of free space is 4?e-7 T*m/A.
1) Find the magnetic field at a distance of 0.1 cm from the center of the wire. (units of T)
2) Find the magnetic field at the surface of the wire. (Units of T)
3) Find the magnetic field at a point outside the wire 0.2 cm from surface of wire. (units of T)