List of top Physics Questions on Electric Dipole asked in KCET

Charges are uniformly spread on the surface of a conducting sphere. The electric field from the center of the sphere in a point outside the sphere varies with distance \( r \) from the center as 

In the situation shown in the diagram, magnitude of q << | Q | and r>>a. The net force on the free charge -q and net torque on it about O at the instant shown are respectively
[ p = 2aQ is the dipole moment ]
diagram of particles and free charge and net torque
Three point charges of $+ 2q, + 2q$ and $- 4q$ are placed at the corners $A, B$ and $C$ of an equilateral triangle $ABC$ of side $'x'$. The magnitude of the electric dipole moment of this system is
The electric flux for Gaussian surface A that enclose the charged particles in free space is (given $q_1= - 14\, nc, q_2 = 78.85\, nC, q_3 = - 56\, nC$)