Figure shows three concentric metallic spherical shells. The outermost shell has charge q2, the inner most shell has charge q1, and the middle shell is uncharged. The charge appearing on the inner surface of outermost shell is

Question

Figure shows three concentric metallic spherical shells. The outermost shell has charge q2, the inner most shell has charge q1, and the middle shell is uncharged. The charge appearing on the inner surface of outermost shell is (A) q1+q2 (B) (q2/2) (C) -q1 (D) Zero

Tardigrade Admin · Accepted Answer

Suppose a guassian surface passes through conducting shell with radius (r3) Flux through it well be zero. So, net charge enclosed must be zero. ∴ q1+q'=0 q'=-q1 <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/70fb733e151644705eec249696225377-.png" />

Q. 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

$q_{1} + q_{2}$

$\frac{q _{2}}{2}$

$- q_{1}$

Zero

Suppose a guassian surface passes through conducting shell with radius $(r_{3})$
Flux through it well be zero.
So, net charge enclosed must be zero.
$∴ q_{1} + q^{'} = 0$
$q^{'} = - q_{1}$

Q. Figure shows three concentric metallic spherical shells. The outermost shell has charge q2​, the inner most shell has charge q1​, and the middle shell is uncharged. The charge appearing on the inner surface of outermost shell is

q1​+q2​

2q2​​

−q1​