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A charged metallic rod is touched with a metallic sphere which is grounded and when the rod is removed, the charge on the sphere will be:

A charged metallic rod is touched with a metallic sphere which is grounded and when the rod is removed, the charge on the sphere will be: Correct Answer Remain neutral

CONCEPT:

Charging by conduction:

  • Charging by conduction involves the contact of a charged object to a neutral object.
  • Hence when an uncharged conductor is brought in contact with a charged conductor, the charge is shared between the two conductors, and hence the uncharged conductor gets charged.
  • In charging by conduction similar type of charge will generate on the uncharged body.

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EXPLANATION:

  • When a charged metallic rod is touched with a metallic sphere that is grounded, then the charge on the rod will move towards the metallic sphere.
  • Since the metallic sphere is grounded, so the whole charge that traveled from the rod to the sphere will go into the earth and the sphere remains uncharged. Hence, option 1 is correct.

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