Question:medium

Two identical conducting spheres, one carrying a charge of +4q and the other carrying -2q, are kept at a distance r apart in a vacuum. The magnitude of the electrostatic force between them is F. If they are brought into contact and then separated to the same distance r, what is the new electrostatic force between them?

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For problems involving charge redistribution on identical conducting spheres, remember that the total charge is conserved and distributes equally. The magnitude of force from Coulomb's law uses the absolute value of the product of charges.
Updated On: May 6, 2026
  • F/8
  • F/4
  • F
  • F/2
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The Correct Option is A

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