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
Mass of A and mass of B still remain equal
Mass of A increases
Mass of B decreases
Mass of B increases
As we learned
Charge on a conductor -
Charge given to a conductor always resides on it's outer surface.
-
Negative charge means excess of electron which increases the mass of sphere B.
Option 1)
Mass of A and mass of B still remain equal
Option 2)
Mass of A increases
Option 3)
Mass of B decreases
Option 4)
Mass of B increases
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