Review Part a ________. Two identical metal spheres A and B are connected by a plastic rod. Both are initially neutral. 3.0 times 10¹² electrons are added to sphere A, then the connecting rod is removed. After the rod is removed, What is the charge on sphere A?
1) +3.0 times 10¹²
2) -3.0 times 10¹²
3) 0
4) Cannot be determined