CBSE Class 12 · 2017 · Delhi · ElectrostaticsVery Short Answer

Does the charge given to a metallic sphere depend on whether it is hollow or solid? Give reason for your answer.

Answer: No. The charge resides only on the outer surface, so a hollow and a solid sphere of the same size hold the same charge.

Solution

Charge given to a conductor resides entirely on its outer surface, because mutual repulsion drives the charges as far apart as possible. The interior being hollow or solid makes no difference, so the charge a metallic sphere can hold does not depend on it.

CBSE Class 12 Board · 2017 · Delhi · Subjective

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