The potential gradient across the material of low permittivity is than across the material of high permittivity?
Correct answer: B. greater
- A. smaller
- B. greater
- C. both (A) and (B)
- D. none of the above
Explanation
At an interface between dielectric materials, the normal electric flux density is the same, while E = D/ε. Therefore, the material with lower permittivity has the greater potential gradient, or electric field intensity.
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