Electrostatics

Question: One metallic sphere \[A\] is given positive charge whereas another identical metallic sphere \[B\] of exactly same mass as of \[A\]is given equal amount of negative charge. Then

1) Mass of \[A\] and mass of \[B\] still remain equal

2) Mass of \[A\] increases

3) Mass of \[B\] decreases

4) Mass of \[B\] increases

Solution:

Explanation: 4e

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