Figure shows three concentric metallic spherical shells. outermost shell has charge q₂ , inner mos

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2. Electric Potential and Capacitance

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Figure shows three concentric metallic spherical shells. The outermost shell has charge $q_2$, the inner most shell has charge $q_1$, and the middle shell is uncharged. The charge appearing on the inner surface of outermost shell is

A

$q_1+q_2$

B

$\frac{q_2}{2}$

C

$-q_1$

D

$0$

Solution

(c)

Suppose a guassian surface passes through conducting shell with radius $\left(r_3\right)$

Flux through it well be zero. So, net charge enclosed must be zero.

$\therefore q_1+q^{\prime}=0$

$q^{\prime}=-q_1$

Standard 12

Physics

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