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Question

A hollow metal sphere of radius 10cm is charged such that the potential on its surface becomes 80V. The potential at the centre of the sphere is?
  1. 80V
  2. 800V
  3. 8V
  4. Zero

A
8V
B
80V
C
800V
D
Zero
Solution
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The potential at the centre of the sphere is 80V because it remains same at each point under the metallic hollow sphere.

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