Problems and Puzzles in Electric Fields by Tadasu Takuma & Takatoshi Shindo

Author:Tadasu Takuma & Takatoshi Shindo
Language: eng
Format: epub
ISBN: 9789811532979
Publisher: Springer Singapore

Answer J3

We now consider the two-dimensional configuration shown in Fig. J2-1. The field at tip P is infinitely high when ε2 > ε1. This result is completely different from the field behavior near the tip of a sharp conductor pit, as explained in Answer D3. At the tip of a sharp conductor pit, the field is zero; in a solid dielectric pit the field is not usually zero but is in fact infinitely high.

Detailed Explanation

Rewriting θα/2 as θ0 in Eq. (6.​20-4) gives the following two equations:

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