P is the point at a distance r from O and OP, then the magnetic field is given as:
dS is the elementary area of the surface P, then
dS = r2 (r2 sin θ d θr)
Solving the above we get,
P is the point at a distance r from O and OP, then the magnetic field is given as:
dS is the elementary area of the surface P, then
dS = r2 (r2 sin θ d θr)
Solving the above we get,