Recent content by wzy75

Thank you so much vanhees71 for the clarification! Is it true that in the most general case, even if the unpaired free charge will disappear inside a conductor, there still might be electric field \textbf{E} and current (e.g. eddy currents induced by changing magnetic fields)?

Would really appreciate it if someone can help me out. Thanks a lot!

I know there must be something wrong with the following derivation based on Maxwell's equations but could not figure out what is wrong. The derivation deals with continuity of current and free charge in a conductor in general. Continuity of current says that, \nabla\cdot...

I can see how the second equation in (7) is derived from the continuity of normal component of B, but still cannot figure out how to derive the first equation in (7), i.e. V_{in}=V_{out}. From the continuity of tangential component of H, I only get \frac{\partial V_{in}}{\partial...

How to derive boundary conditions for interfaces between ferromagnetic material and air? Please see the attached figure. Any hints will be greatly appreciated!

It's true that finite rotations don't commute. But here I'm considering instantaneous angular velocities of two different reference frames with one rotating with respect to the other. Isn't the absolute angular velocity of the second frame (please see the figure) w1+w2?

Please see the attached figure.