Two conducting hollow sphere of radius $R$ and $3R$ are found to have $Q$ charge on outer surface when both are connected with a long wire and $q'$ charge is kept at the centre of bigger sphere. Then which one is true
  • A$q' = 2Q$
  • B$q' = 3Q$
  • C$q' = 4Q$
  • D$q' = 6Q$
Medium
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