Three metal spheres A,B and C are mounted on insulating stands. The spheres are touching one another, as shown in the diagram A strong positively charged object it brought near sphere A and a strong negative charge is brought near sphere C. While the charged objects remains near spheres A anc C, sphere B is removed by means of its insulating stand. After the charged objects are removed, sphere B is first touched to sphere A and then to sphere C. The resulting charge on B would be-

Options

A. the same sign but `1//2` the magnitude as originally on sphere A.
B. the opposite sign but `1//2` the magnitude as originally on sphere A.
C. the opposite sign but `1//4` the magnitude as originally on sphere A
D. the same sign but `1//2` the magnitude as originally on sphere C

Answer

C

Explanation