Two metal spheres A and B of exactly same mass are given equal positive and negative charges respectively. Their masses after charging:

Remains unaffected

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Mass of A

>

mass of B

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Mass of A

<

mass of B

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Nothing can be said

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Solution

The correct option is D Mass of A $<$ mass of B
As the question states metallic conductors, only electrons move for gaining or losing charges. Also, the net excess of electrons is responsible for negative charge.
Thus, A must have lost electrons and B must have gained them.
Hence,
Mass of A $<$ Mass of B.

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Two metal spheres A and B of exactly same mass are given equal positive and negative charges respectively. Their masses after charging:

The correct option is D Mass of A < mass of BAs the question states metallic conductors, only electrons move for gaining or losing charges. Also, the net excess of electrons is responsible for negative charge.Thus, A must have lost electrons and B must have gained them.Hence,Mass of A < Mass of B.