MEDIUM
12th CBSE
IMPORTANT
Earn 100

Two plane sheets of charge densities and are kept in air as shown in Fig. 1.161. What are the electric field intensities at points and ?


Important Questions on Electric Charges and Field
MEDIUM
12th CBSE
IMPORTANT
Two small balls, having equal positive charge coulomb are suspended by two insulating strings of equal length metre from a hook fixed to a stand. The whole set up is taken in a satellite into space where there is no gravity. What is the angle between the two strings and the tension in each string?

MEDIUM
12th CBSE
IMPORTANT
An electric dipole of dipole moment is enclosed by a closed surface. What is the net flux coming out of the surface?

EASY
12th CBSE
IMPORTANT
How does the coulomb force between two point charges depend upon the dielectric constant of the medium?

EASY
12th CBSE
IMPORTANT
Two fixed point charges and units are separated by a distance . Where should a third charge be placed for it to be in equilibrium?

EASY
12th CBSE
IMPORTANT
What is the angle between the directions of electric field at any (i) axial point and (ii) equatorial point due to an electric dipole?

EASY
12th CBSE
IMPORTANT
How does the electric flux due to a point charge enclosed by a spherical Gaussian surface get affected when its radius is increased?

EASY
12th CBSE
IMPORTANT
A dipole, of dipole moment , is present in a uniform electric field . Write the value of the angle between and for which the torque, experienced by the dipole, is minimum.

EASY
12th CBSE
IMPORTANT
A charge '’ is placed at the centre of a cube. What is the electric flux passing through the cube?
