GATE EC 1988 Electromagnetics Solution Q 1

GATE EC 1988 Electromagnetics Solution Q 1

On either side of a charge-free interface between two media

a) the normal components of the electric field are equal

b) the tangential component of the electric field are equal

c) the normal components of the electric flux density are equal

d) the tangential components of the electric flux density are equal

Ans- b and c

Explanation

According to Boundary conditions: Tangential components of electric field and normal components of flux density are continuous.

\begin{array}{l}E_{t_1}=E_{t_2}\\D_{N_1}=D_{N_2}\end{array}

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