Electrostatics ...

Total electric flux coming out of a unit positive charge put in air is

For a given surface the Gauss\'s law is stated as ∮ E. ds = 0. From this we can conclude that

A point charge +q is placed at the centre of a cube of side L. The electric flux emerging from the cube is

A charge q is placed at the centre of the open end of cylindrical vessel. The flux of the electric field through the surface of the vessel is

It is not convenient to use a spherical Gaussian surface to find the electric field due to an electric dipole using Gauss\'s theorem because

According to Gauss\' theorem, electric field of an infinitely long straight wire is proportional to

Electric charge is uniformly distributed along a long straight wire of radius 1 mm. The charge per cm length of the wire is Q coulomb. Another cylindrical surface of radius 50 cm and length 1 m symmetrically encloses the wire as shown in the figure. The total electric flux passing through the cylindrical surface is

The S.I. unit of electric flux is

q₁, q₂, q₃ and q₄ are point charges located at points as shown in the figure and S is a spherical Gaussian surface of radius R. Which of the following is true according to the Gauss\'s law