Two identical positive point charges are held fixed apart
PHYSICS · Single correct · CBSE · Physics · Electric Charges and Fields · Electric Charges and Fields
Problem
Two identical positive point charges are held fixed 0.40m apart. A small negative test charge is released from rest exactly halfway between them along the line joining the two charges. Which statement best describes the motion of the test charge immediately after it is released?
(a) It accelerates toward the left-hand positive charge because the attractive force on that side is greater
(b) It moves perpendicular to the line connecting the fixed charges because the forces cancel along the line
(c) It remains at rest because the net electric force is zero at that point
(d) It accelerates directly away from both positive charges along the line joining them because negative charges move opposite to the electric field lines