
A hollow cylinder has a charge coulomb at its centre. If is the electric flux associated with the curved surface , then the flux linked with the plane surface will be



Important Questions on Electrostatics

The black shapes in the figure below are closed surfaces. The electric field lines are in red. For which case, the net flux through the surfaces is non-zero?



A charge is placed at one corner of a cube as shown in figure. The flux of electrostatic field through the shaded area is:



Choose the correct alternative , , or for each of the questions given below
A closed surface in vacuum encloses charges and . The total electric flux emerging out of the surface is


[use in unit]






Let the respective electric fluxes through the surfaces be and . Then:

for
for .
does not depend on x and y. If this potential is generated by a constant charge per unit volume (in units of ) which is spread over a certain region, then choose the correct statement.





A point charge is placed at the corner of a cube of side as shown in the figure. What is the electric flux through the face ?


