Question:
A spherical conducting shell of inner radius r₁ and outer radius r₂ has a charge Q. A charge q is placed at the centre of the shell. The surface charge density on outer surface of the shell is:
A spherical conducting shell of inner radius r₁ and outer radius r₂ has a charge Q. A charge q is placed at the centre of the shell. The surface charge density on outer surface of the shell is:
Updated On: Mar 27, 2025
- \(\frac{Q+q}{4πr_2^2}\)
- \(\frac{Q-q}{4πr_2^2}\)
- \(\frac{Q+q}{4π(r_2^2-r_1^2)}\)
- \(\frac{Q-q}{4π(r_2^2-r_1^2)}\)
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The Correct Option is A
Solution and Explanation
The correct option is (A):
\(\frac{Q+q}{4πr_2^2}\)
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