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  4. A hollow metal sphere of radius 10 cm is charged such that the potential on its surface becomes 80 V. The potential at the centre of the sphere is

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Q. A hollow metal sphere of radius 10 cm is charged such that the potential on its surface becomes 80 V. The potential at the centre of the sphere is

J & K CETJ & K CET 2011Electrostatic Potential and Capacitance

Solution:

The potential at the centre of the sphere is 80 V because it remains same at each point under the metallic hollow sphere