Two positive point charges each of magnitude 10 C are fixed at positions A &B at a seperation 2 d = 6 m. A negatively charged particle of mass m = 90 gm and charge of magnitude 10 × 10^−6 C is revolving in a circular path of radius 4 m in the plane perpendicular to the line AB and bisecting the line AB. Neglect the effect of gravity. Find the angular velocity of the particle