In free space, a particle A of charge 1 μC is held fixed at

Last updated: 7/31/2022

In free space, a particle A of charge 1 μC is held fixed at a point P. Another particle B of the same charge and mass 4µg is kept at a distance of 1 mm from P. if B is released, then its velocity at a distance of 9mm from P is: 9 x 10⁹ Nm² C-2 1 2.0 × 10³ m/s 3.0 x 10¹ m/s 1.5 × 10² m/s 1.0m/s