An electric dipole consists of 0.600g spheres charged to ± 2.30nC at the ends of a 9.00cm -long mass less rod. The dipole rotates on a frictionless pivot at its center. The dipole is held perpendicular to a uniform electric field with field strength 1000V/m then released.
What is the dipole's angular velocity at the instant it is aligned by the electric field?