There exists an equipotential surface S due to a finite system of charges. A positive charge Q is placed on S. The force on Q is:
A: In the tangential direction to the equipotential surface.
B: In the perpendicular direction to the equipotential surface.
C: Towards the direction of increasing potential.
D: Towards the direction of decreasing potential.
Which of the following statements is/are correct?
1
A and C are correct
2
A and D are correct
3
B and C are correct
4
B and D are correct