A Series of 3 Uncharged Concentric Spherical Conducting Shells Surround $\infty$

question 24

Multiple Choice

A series of 3 uncharged concentric spherical conducting shells surround a small central charge q.The potential at a point outside the third shell,at distance r from the center,and relative to V = 0 at $\infty$ ,is

• A) \(- \frac { 3 k _ { e } q } { r }\) .
• B) \(- \frac { ( \ln 3 ) k _ { e } q } { r }\) .
• C) \(+ \frac { k _ { e } q } { r }\) .
• D) \(+ \frac { ( \ln 3 ) k _ { e } q } { r }\) .
• E) \(+ \frac { 3 k _ { e } q } { r }\) .

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