1.
A metallic sphere is placed in a uniform electric field as shown. Which path is followed by the lines of force shown in the figure?
2.
The electric field required to keep a water drop of mass m just to remain suspended when charged with one electron of charge e (take g as acceleration due to gravity) is-
3.
Two charged spheres separated by a distance d exert some force F on each other. If they are immersed in a liquid of dielectric constant 2, then the force exerted by them, when all other conditions remain same is-
5.
The figure shows the electric field lines due to two charges. What is the nature of the two charges?
6.
What is the angle between the electric dipole moment and the electric field on the equatorial line?
8.
Four point charges are placed at the corners of a square ABCD of side 10 cm as shown in figure. The net force on a charge of 1µC placed at the center of a square is-
10.
When some charge is transferred to ‘A’, it readily gets distributed over the entire surface of ‘A’. If some charge is put on ‘B’, it stays at the same place. Here, A and B refers to-
