I need a little help on an E&M problem I'm working on. A dielectric slab suspended in free space has a time dependant, non-uniform electric field inside of it (it was given in the problem, but I don't have it with me right now). For the material [tex]\mu=\mu_0[/tex] and [tex]\epsilon=2.56\epsilon_0[/tex]. I need to first find the magnetic field inside the material and then the magnetic and electric fields just above and below the material.(adsbygoogle = window.adsbygoogle || []).push({});

For the first part, I tried using curl of E[tex]=-\frac{\partial{B}}{\partial{t}}[/tex] which gives me the partial time derivative of the magnetic field. Can I just integrate this to get the magnetic field? Since it is a partial derivative of B, I wasn't sure if that would be allowed.

For the second part, how does the electric field change ouside of the material? Does the permitivity affect the magnetic or the electric field, or both? And could someone explain the difference between permitivity and permeability?

E&M is a very weak subject for me, so expect to get a lot of questions this semester.

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# Homework Help: Induced Magnetic Field in Dielectric

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