Hi,
Suppose I have an infinite cylinder with radius R, axis along the z axis and constant magnetization M[itex]\hat{z}[/itex]. I wish to find the magnetic field everywhere. (This is NOT a HW question! I don't have to solve it nor submit it. I wish merely to check and see whether I understand this topic correctly.)
Now, as M is constant and [itex]\vec{j}[/itex] = cM[itex]\hat{θ}[/itex], i.e. tangential current, may I consider this to be an infinite solenoid, whose magnetic field is zero everywhere, except for within the solenoid where it is equal to 4πnI/c (using c.g.s), where n is the density of wraps?
Suppose I have an infinite cylinder with radius R, axis along the z axis and constant magnetization M[itex]\hat{z}[/itex]. I wish to find the magnetic field everywhere. (This is NOT a HW question! I don't have to solve it nor submit it. I wish merely to check and see whether I understand this topic correctly.)
Now, as M is constant and [itex]\vec{j}[/itex] = cM[itex]\hat{θ}[/itex], i.e. tangential current, may I consider this to be an infinite solenoid, whose magnetic field is zero everywhere, except for within the solenoid where it is equal to 4πnI/c (using c.g.s), where n is the density of wraps?