Consider the situation of figure (29-Q3). The work done in taking a point charge from P to A is WA, from P to B is WB and from P to C is Wc.
(a) WA<WB< wc.
(b) WA> > WC
(c) WA = WB = WC.
(d) of these.
The correct answer is (c) WA = WB = WC.