A hollow metallic sphere of radius 10 cm is charged such that potential of its surface is 80 V. The potential at the centre of the sphere would be (a) 80 V (b) 800 V (c) zero (d) 8 V

Answer: (a). Inside a hollow charged conductor E = 0, so V is the same everywhere inside as on the surface. Vcentre = Vsurface = 80 V So the answer is (a) 80 V.

A hollow metallic sphere of radius 10 cm is charged such that… | NEET 1994 (AIPMT)

Q130NEET 1994 · AIPMTEasy

Electric Potential & Equipotentials

A hollow metallic sphere of radius $10\text{ cm}$ is charged such that potential of its surface is $80\text{ V}$ . The potential at the centre of the sphere would be

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Answer: (a)

Inside a hollow charged conductor $E = 0$ , so $V$ is the same everywhere inside as on the surface.
$V_{\text{centre}} = V_{\text{surface}} = 80\text{ V}$
So the answer is (a) $80\text{ V}$ .

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