[電磁]-雲科90-電資所

[aacvbn ( 姿勢+)]

http://www.lib.yuntech.edu.tw/exam_new/90/el.pdf
第14頁第2題 有附圖@@

The insulator between the inner conducting cylinder a and outer

cylindrical shell b is composed of four sectors of  equal

dimensions but different dielectric constants,

ε_1 ε_2 ε_3  and ε_4 ,see Fig.2. The radius of cylinder a is (r_a)

and the inner radius of outer cylindrical shell b is (r_b).

In case the cylinders extend indefinitely ,

find the capacitance per unit length.

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推 blackant:4個電容並聯~over
→ aacvbn:這題有詳解 跟前兩題一樣 贈600P 拜拖各位高手了~~