Physics - Electrostatics Question with Solution | TestHub

Two charges ${\mathrm{q}}_1$ and ${\mathrm{q}}_2$ are separated by a distance of 30 cm. A third charge $q_3$ initially at ' C ' as shown in the figure, is moved along the circular path of radius 40 cm from C to D. If the difference in potential energy due to movement of $q_3$ from $C$ to $D$ is given by $\frac{{\mathrm{q}}_3\mathrm{K}}{4\pi {ϵ}_0}$, the value of K is :