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Two identical metallic spheres of exactl...

Two identical metallic spheres of exactly equal masses are taken. One is given a poistive charge Q coulombs and the other an equal negative charge. Their masses after charging are different.

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Mass of negatively charge sphere will be slightly more than the mass of positively charged sphere because some electrons will be given to the negatively charged sphere while some electrons will be taken out from the positively charged sphere.
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