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A conducting sphere of radius 10 cm is charged with 10 μC. Another uncharged sphere of radius 20 cm is allowed to touch it for some time. After that if the spheres are separated, then surface density of charges on the spheres will be in the ratio of
  • 1:4
  • 1 : 3
  • 1 : 2
  • 1 : 1

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