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Hi, this is the first time I post a thread in this forum.

I am not sure if I could post this question here since it is not a homework problem.

I have trouble understanding two boundary condition between nonconductor and conductor from Maxwell's equations in dynamic case.

First,nX (H1 -H2) = I (media 1 is non-conductor, media 2 is conductor)

I know that when the conductor is perfect, there is discontinuity on the boundary since H2=0. So there is surface currentK.

when the conductor is regular conductor, I =J. da= 0 because we take the limit as da -> 0 when we get the equationnX (H1 -H2) = I. Is this reasoning right?

And when the conductor is superconductor, isHcontinuous between the boundary?

Is there surface currentK?

Second, (D1 -D2) .n= σ ,

When the conductor is perfect, there is discontinuity on the boundary since D2=0.

What happen when the conductor is regular conductor?

DoesD1 =D2 ? Is there and surface charge?

And What happen if it is superconductor?

DoesD1 =D2 or D2=0, D1=σ ?

Thanks.

2. Relevant equations

3. The attempt at a solution

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# Maxwell's equations on the boundary between non-conductor and conductor

Can you offer guidance or do you also need help?

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