Solution Found!
In Fig. 21-20, a central particle of charge - 2q is
Chapter , Problem 10(choose chapter or problem)
In Fig. 21-20, a central particle of charge - 2q is surrounded by a square array of charged particles, separated by either distance d or d/2 along the perimeter of the square. What are the magnitude and direction of the net electrostatic force on the central particle due to the other particles? (Hint: Consideration of symmetry can greatly reduce the amount of work required here.)
Questions & Answers
QUESTION:
In Fig. 21-20, a central particle of charge - 2q is surrounded by a square array of charged particles, separated by either distance d or d/2 along the perimeter of the square. What are the magnitude and direction of the net electrostatic force on the central particle due to the other particles? (Hint: Consideration of symmetry can greatly reduce the amount of work required here.)
ANSWER:Step 1 of 2
The following are given by question:
The charge placed at the center of the square
Distance between the charges is either
Considering the symmetry of the situation, the forces acting on the center charge -2q due to all the other charges present along the boundary of the square, gets cancelled out. Only the force acting on the center charge due to the charge +3q present in the middle of the left side of the square contributes in the net force on -2q.