A square of side length has point charges at two adjacent corners and at the other…

PHYSICS · Single correct · CBSE · Physics · Electrostatic Potential and Capacitance · Electrostatic Potential and Capacitance

Problem

A square of side length

a

has point charges

+q

at two adjacent corners and

-q

at the other two adjacent corners. Determine the total electric potential energy of this system. (a)

\displaystyle -\frac{2kq^{2}}{a}

(b) 0 (c)

\displaystyle -\frac{\sqrt{2}\,kq^{2}}{a}

(d)

\displaystyle \frac{\sqrt{2}\,kq^{2}}{a}