Electrostatics

Two charges each of magnitude \(0.01 ~\mathrm{C}\) and separated by a distance of \(0.4 \mathrm{~mm}\) constitute an electric dipole. If the dipole is placed in an uniform electric field '\(\vec{E}\)' of 10 dyne/C making \(30^{\circ}\) angle with \(\vec{E}\), the magnitude of torque acting on dipole is: