HARD
12th Telangana Board
IMPORTANT
Earn 100

Demonstrate that the potential of the field generated by a dipole, with electric moment , may be represented as , where is the radius vector. Using this expression, find the magnitude of the electric field strength vector as a function of and .



Important Questions on Electric Charges and Fields
HARD
12th Telangana Board
IMPORTANT
What is meant by an electric dipole. Define electric dipole moment. Derive an expression for intensity of electric field at an axial point of an electric dipole.

MEDIUM
12th Telangana Board
IMPORTANT
Derive an expression for the intensity of electric field due to an electric dipole on a point situated on its equatorial line.

EASY
12th Telangana Board
IMPORTANT
State Gauss's law for electrostatics.

MEDIUM
12th Telangana Board
IMPORTANT
A charge is at the centre of a sphere. If now this charge is placed at the centre of a cylinder of same volume then what will be the ratio of net flux the two cases?

EASY
12th Telangana Board
IMPORTANT
If Coulomb’s law involved dependence (instead of ), would Gauss’s law be still true?

MEDIUM
12th Telangana Board
IMPORTANT
A small sphere of radius and charge is enclosed by a spherical shell of radius and charge Show that if is positive, charge will necessarily flow from the sphere to the shell (when the two are connected by a wire) no matter what the charge on the shell is.

EASY
12th Telangana Board
IMPORTANT
A point charge of is at the center of a cubic Gaussian surface on edge. What is the net electric flux through the surface? ()

MEDIUM
12th Telangana Board
IMPORTANT
The flux entering and leaving a closed surface are and respectively. What is the net charge enclosed by this surface?
