Mass of spherical balls after adding charges

[Amith2006]

# Two identical spherical balls A and B are given equal amount of positive and negative charge. What is the ratio of the masses A and B now?
a)Equal to one
b)Greater than one
c)Less than one
d)May be Greater than or Less than one depending on their sizes

 

[Jimmy Snyder]

# Two identical spherical balls A and B are given equal amount of positive and negative charge. What is the ratio of the masses A and B now?
a)Equal to one
b)Greater than one
c)Less than one
d)May be Greater than or Less than one depending on their sizes

Are we to assume that A is given a positive charge and B given a negative charge? Even in that case, depending upon the method by which the positive and negative charges are given, the answer could be any of a, b, or c. I don't think the answer can be d because the balls are identical. Is there more information about how to give the balls their charges?

 

[dingsbunnyranch]

When an object becomes charged, it either gains or loses electrons. Since electrons are negatively charged, when an object becomes negatively charged, it GAINS electrons, and therefore mass. So, mass B gains mass.
Similarly, when an object becomes postively charged, it loses electrons. So, mass A loses mass.

Therefore, the ratio of the masses is now less than one.