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Van De Graaff Generator
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 1) A hollow metal sphere of radius 5 cm is charged such that the potential on its surface is 10 V. The potential at the centre of the sphere is Zero 10 V Same as at a point 5 cm away from the surface Same as at a point 10 cm away from the surface

 2) What happens when we separate insulated copper spheres of radii 10 cm and 15 cm, having equal charges which are initially connected by a copper wire? Both spheres will have the same charge Charges on 15 cm sphere will be greater than that on 10 cm sphere Charges on 10 cm sphere will be greater than that on 15 cm sphere Charges on both sphere become zero

 3) The force of attraction between two charged spheres separated by a distance ‘r’ is proportional to r² 1/r r³ 1/r²

 4) The electric field intensity inside a charged conducting hollow sphere is Zero Inversely proportional to square of its radius Directly proportional to its radius Infinity

 5) Charge density of an irregular shaped conductor is Constant Infinity A dimensional quantity Different at different points

 6) Van de Graaff generator is based on Coulomb’s law Phenomenon of corona discharge Charge always resides on outer surface of the conductor Both ‘b’ and ‘c’

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