Questions in Electrostatics

SelectQuestion
Two spherical conductors B and C having equal radii and carrying equal charges in them repel each other with a force F when kept apart at some distance. A third spherical conductor having same radius as that of B but uncharged is brought in contact with B, then brought in contact with C and finally removed away from both. The new force of repulsion between B and C is
When a body is earth connected, electrons from the earth flow into the body. This means the body is…..
The charges on two sphere are $+7 \mu C$ and $– 5\mu C$ respectively. They experience a force F. If each of them is given and additional charge of $– 2\mu C$, the new force of attraction will be
The ratio of electrostatic and gravitational forces acting between electron and proton separated by a distance \[5 \times {10^{ - 11}}m,\] will be (Charge on electron = $1.6 \times 10^{–19} C$, mass of electron = $9.1 \times 10^{–31}$ kg, mass of proton = \[1.6 \times {10^{ - 27}}kg,\] \[\,G = 6.7 \times {10^{ - 11}}\,N{m^2}/k{g^2})\]
Two point charges $3 \times 10^{–6}C$ and $8 \times 10^{–6}$ C repel each other by a force of $6 \times 10^{–3} N. If each of them is given an additional charge $– 6 \times 10^6$ C, the force between them will be
A charge q is placed at the centre of the line joining two equal charges Q. The system of the three charges will be in equilibrium, if $q$is equal to
Inside a hollow charged spherical conductor, the potential
Two small spheres each carrying a charge $q$are placed $r$ metre apart. If one of the spheres is taken around the other one in a circular path of radius $r$, the work done will be equal to
The electric charge in uniform motion produces
Two charged spheres of radii 10 cm and 15 cm are connected by a thin wire. No current will flow, if they have

View Selected Questions (0)

Back to Categories

Back to Home