Electric Flux Through Cone Or Disc - Practice Questions & MCQ

 A cone of base radius R and height h is  located in a uniform electric field parallel to its base. The electric flux entering the cone is :

 Shown in the figure are two point charges +Q and -Q inside the cavity of a spherical shell. The charges are kept near the surface of the cavity on opposite sides of the centre of the shell. If is the surface charge on the inner surface and Q₁ net charge on it and the surface charge on the outer surface and Q₂ net charge on it then :

If the electric flux entering and leaving an enclosed surface respectively is and , the electric charge inside the surface will be:

Let  be the charge density distribution for a solid sphere of radius and total charge . For a point inside the sphere at a distance from the centre of the sphere, the magnitude of the electric field is

Let there be a spherically symmetric charge distribution with charge density varying as where  is the distance from the origin. The electric field at a distance from the origin is given by