A small charged plastic ball is vertically above another charged small ball in a frictionless test tube as shown in the figure.The balls are in equilibrium a distance d apart.If the charge on each ball is doubled,the equilibrium distance between the balls in the test tube would become
A) d.
B)2d.
C)4d.
D)8d.
E)d/4.

Question

A small charged plastic ball is vertically above another charged small ball in a frictionless test tube as shown in the figure.The balls are in equilibrium a distance d apart.If the charge on each ball is doubled,the equilibrium distance between the balls in the test tube would become 
A) d. 
B)2d. 
C)4d. 
D)8d. 
E)d/4.

Quizplus · Accepted Answer

The Answer is B

A Small Charged Plastic Ball Is Vertically Above Another Charged