Question

The boundary condition for normal component of Dbar is...
a)Dt1=Dt2
b)Dn1=Dn2
c)D1=D2
d)Dn1.Dn2​

Answer 1

Since the tangential component of E on the surface of a perfect conductor is zero, the electric field at the surface must be oriented entirely in the direction perpendicular to the surface.

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