Recent content by cadmus

Again, thanks for the reply. The \nabla \cdot \mathbf{E} = \frac {\rho} {\varepsilon_0} formula applies only to E filed that are not circular. [ I mean in order to derive the total electric field inside the cylinder you will have to find the E in the theta direction as well] According to...

Thanks for the reply. But it did not address my question, I would like to know why in this problem there is a certainty that the Electric field is not changing with time ? id est, look at Ampere's Law after Maxwell correction: \nabla \times \mathbf{B} = \mu_0\mathbf{J} + \mu_0...

Homework Statement A hollow cylinder of length L and radius R, is madeout of a non-conducting material, is charged with a constant surface charge σ, and is rotating, along its axis of symmetry, with an angular velocity w(t) = αt. Q:What is the magnetic field inside the cylinder...