Recent content by dww52

So if I use a rectangular wire around the plate, do I only include the top and bottom portions of the length, since these are the only sections where the B is perpendicular to the path? Also how do I calculate the current, is it just equal to σ?

A very, large, thin conducting plate lies in the x-y plane. The plate carries a current in the y direction. The current is uniformly distributed over the plate with σ amperes flowing across each meter of length perpendicular to the current. Use Ampere's Law to find the magnetic field at some...