Electrostatic P...

The minimum velocity v with which charge q should be projected so that it manages to reach the centre of the ring starting from the position shown in figure is

The work done in moving a positive test charge qo from infinity to a point P at a distance r from the charge q is

Electric field intensity is equal to

Electric potential at a point located far away from the charge is taken to be

A charge of 6 mC is located at the origin. The work done in taking a small charge of -2 x 10^-9 C from a point P (0, 3 cm, 0) to a Q (0,4 cm, 0) is​

A particle of mass 1 Kg and charge 1/3 μC is projected towards a non conducting fixed spherical shell having the same charge uniformly distributed on its surface. The minimum intial velocity V₀ of projection of particle required if the particle just grazes the shell is

On moving a charge of 20 coulombs by 2 cm, 2 J of work is done, then the potential difference between the points is

The amount of work done in moving a charge from one point to another along an equipotential line or surface charge is

  A charge is uniformly distributed inside a spherical body of radius r₁ = 2r₀ having a concentric cavity of radius r₂ = r₀ (ρ is charge density inside the sphere). The potential of a point P or a distance 3r₀/2 from the centre is

Electric field intensity at point ‘B’ due to a point charge ‘Q’ kept at a point ‘A’ is 12 NC^-1 and the electric potential at a point ‘B’ due to same charge is 6 JC^-1. The distance between AB is​