There is a fixed positive charges Q at O, and A and B are points equidistant from O. A positive charge +q is taken slowly by an external agent from A to B along the line AC and then along the line CB.

Options

A. The total work done on the charge is zero.
B. The work done by the electrostatic force from A to C is negative.
C. The work done by the electrostatic force from C to B is positive.
D. The work done by electrostatic force in taking the charge from A to B is dependent on the actual path.

Answer

A, B, C

Explanation

a.,b.,c.
(a) is correc because potential of `A` and `B` is same. (b) is correct because charge is going from low potential to high potential. Electric potential energy increases and electrostatic forces do negative work. Similarly (c) is also correct.