Electric charges & fields | MCQ-7 | CBSE CLASS 12 | PHYSICS

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Explanation for why it is option D increases or decreases:

The charge of a body depends upon transfer of electrons.
So, if a body becomes negatively charged, it implies that it has gained electrons and hence its mass will increase.
Whereas if a body becomes positively charged it loses electrons hence its mass will decrease.
Therefore it is possible for the mass of a body to both increase and decreases upon conduction.

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