Which of the following is not the property of an equipotential surface?(a) They do not cross each other.(b) The work done in carrying a charge from one point to another on anequipotential surface is zero.(c ) For a uniform electric field, they are concentric spheres.(d) They can be imaginary spheres

Q.2. Answer the following:(8 Marks)(1) What is electrostatics?Define electric lines of force.(m) What will be the electric field intensity at a point P inside a charged sphere?(iv) What is equipotential surface?(v) What is the work done in moving the charge on two equipotential surfaces A and B as shown in the diagram?A(v) Two point charges +10 µC and-10 PC are separated by a distance of 40 cm in air. Calculate the potential energy of the system,(VII) How does charged sphere behave as point charge for any point outside the sphere?(vill) What is the principle of Van de Graaff generator?Answer according to one marker

The diagram shows the cross sections of equipotential surfaces at various distance 𝑥 from apoint 𝑂 in an electric field.(a) Explain whether the electric field is uniform.(b) Find the magnitude of the electric field strength.(c) What is the direction of the electric field?(d) What is the force acting on an electron in the electric field?

Assertion (A): The electric field inside a conductor in electrostatic equilibrium is zero.Reason (R): Charges inside a conductor move to the surface to minimize potential energy.a) Both A and R are true, and R is the correct explanation of A.b) Both A and R are true, but R is not the correct explanation of A.c) A is true, but R is false.d) A is false, but R is true.

Given below are two statements.Statement I: Electric potential is constant within and at the surface of each conductor.Statement II: Electric field just outside a charged conductor is perpendicular to the surface of the conductor at every point.In the light of the above statements, choose the most appropriate answer from the options given below.

A metallic solid sphere of radius R is given the charge Q. Which of the followingstatement is true then(a) Electric field at points 0< r < R is zero(b) Charge Q is on the outer surface of the sphere(c) Electric field at r>R is given by Q/4πε0r2(d) Electric field is perpendicular to the surface of the sphere