[理工] 電磁靜電學問題一問!!
Consider a solid conducting sphere with radius a inside and concentric
with a conducting spherical shell with inner radius b and outer radius c. The solid
sphere has charge q on it and the shell is neutral.
a) Calculate the electric field!E
(i) for r < a, (ii) a < r < b, (iii) b < r < c, and (iv) r > c.
b) Use the electric field in (a) to calculate V(r) at (i) r = c, (ii) r = b,
(iii) r = a, and (iv)
r = 0.
這題意思好像是指只有內部一帶電球殼
在r>a 之後另三區都是中性電?
那這樣就電場而言不就只有(i)是0 ,後三題都是單純當一個Q來看嗎?
但想想好像又沒這麼單純,不知是我誤解題目意思還是?
請各位大大給我指點一下謝謝^^
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