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Unformatted text preview: at is the capacitance C of this capacitor ? Q
V a2 < r < a3: E = 1 Q
0 metal r < a2: E(r) = 0
since Qenclosed = 0 Q
(2πε0a2L) • What is V?
• The potential
the What is the sign of V = Vouter - Vinner?
(A) Vouter-Vinner < 0
(B) Vouter-Vinner = 0
(B) (C) Vouter-Vinner > 0
Physics 212 Lecture 7, Slide 25
Physics Calculation cross-section A capacitor is constructed from two conducting
cylindrical shells of radii a1, a2, a3, and a4 and
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