Question

At the planar interface of two dielectrics, which of the following statements related to the electric field ($\vec{𝐸}$ ), electric displacement ($\vec{D}$) and polarization ($\vec{P}$ ) is true ?

• A. Normal component of both $\vec{𝐷}$ and $\vec{𝑃}$ are continuous
• B. Normal component of both $\vec{𝐷}$ and $\vec{E}$ are discontinuous
• C. Normal component of $\vec{D}$ is continuous and that of $\vec{𝑃}$ is discontinuous
• D. Normal component of both $\vec{𝐸}$ and $\vec{𝑃}$ are continuous

Answer 1

Answer: (B)

Normal component of both $\vec{𝐷}$ and $\vec{E}$ are discontinuous

Answer 2

The correct option is (B) : Normal component of both $\vec{𝐷}$ and $\vec{E}$ are discontinuous.