CBSE Class 12 Physics Electrostat Assignment Set A

PHYSICS TEST SERIES

Hr ELECTROSTAT 

Q1.Chrge q is placed at the centre of a cube. Find the flux passing through the two opposite faces of the cube.

Q2.Potential on the surface of a thin charge spherical shell is 10V.Find the potential at the centre of the shell.

Q3. Q A Two capacitors C1 and C2 having equal distance B between the plates and area of one is twice of other V identify the corresponding graph.

Q4. Draw the equipotential surfaces for q>0.Are they equidistance ,if not write the reason.

Q5. A capacitor of 4μf is charged by 200V.It is then disconnected from supply and is connected to another uncharged capacitor of 2μf.How much electrostatic energy of the first capacitor is lost in the form of heat and electromagnetic radiation?

Q6. If there is an arc of radius R makes an angle α at its centre having the linear charge density λ. Find the potential at the centre of arc.

Q7.There is an oil drop of radius R in equilibrium between the two plates of the capacitor which are having surface charge densities +σ and –σ respectively and at distance d apart. Density of oil is ρ. Find an expression for excess number of electrons in oil drop.

Q8. A capacitor is charged and then it is disconnected from the source and then distance between its two plates is increased to twice and then a dielectric of constant K is filled between the plates. Find the change in energy stored in the capacitor.

Q9.Find the frequency of oscillations of a dipole of dipole moment p and having rotational inertia I, in a uniform electric field E.

Please refer to the link below for CBSE Class 12 Physics Electrostat Assignment Set A