The electric field at the origin is along the positive *x*-axis
PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
The electric field at the origin is along the positive *x*-axis. A small circle is drawn with the centre at the origin cutting the axes at points *A*, *B*, *C* and *D* having coordinates (a,0), (0,a), (−a,0), (0,−a) respectively. Out of the points on the periphery of the circle, the potential is minimum at
(a) *A*
(b) *B*
(c) *C*
(d) *D*.