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

• A. Mass of $A$ and mass of $B$ still remain equal
• B. Mass of $A$ increases
• C. Mass of $B$ decreases
• D. Mass of $B$ increases

Answer 1

Answer: (D)

Mass of $B$ increases

Answer 2

Negative charge means excess of electron which increases the mass of sphere B.