Two uncharged metal spheres,#1 and #2,are mounted on insulating support rods.A third metal sphere,carrying a positive charge,is then placed near #2.Now a copper wire is momentarily connected between #1 and #2 and then removed.Finally,sphere #3 is removed.In this final state
A)spheres #1 and #2 are still uncharged.
B)sphere #1 carries positive charge and #2 carries negative charge.
C)sphere #1 carries negative charge and #2 carries positive charge.
D)spheres #1 and #2 both carry positive charge.
E)spheres #1 and #2 both carry negative charge.

Question

Quizplus · Accepted Answer

When the positively charged sphere is brought near sphere #2, it induces a negative charge on the side of sphere #2 closest to it and a positive charge on the opposite side. When the wire connects #1 and #2, electrons flow from #1 to #2 to neutralize the positive charge on #2. After removing the wire and the charged sphere, #1 ends up with a positive charge and #2 with a negative charge.

Two Uncharged Metal Spheres,#1 and #2,are Mounted on Insulating Support