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1. Electric Charges and Fields
easy
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
Solution
(d) Negative charge means excess of electron which increases the mass of sphere $B$.
Standard 12
Physics
