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?

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 figure below shows two point charges, 𝑄1 = +7.50 nC and 𝑄2 = −8.30 nC, separated bya distance of 5.00 mm.Calculate(a) the force acted upon 𝑄1.(b) the electric field strength at the centre between the point charges.(c) the electric potential at the centre between the point charges.

1. Ll___________________ 2. It is the electric field multiplied by the distance.___________________ 3. An emf induced by the motion of the conductor across the magnetic field.___________________ 4. It is the electric field E multiplied by the length.___________________ 5. States that the induced emf in a circuit is equal to the time rate of change of the magnetic flux through it.___________________ 6. A non-conservative field in the loop equal to the emf divided by the circumference of the loop.___________________ 7. Consists of coils of conductors that receive a voltage and produce magnetic flux.___________________ 8. They are electrical connections that are used to transfer power to and fro from the rotor of an AC generator.___________________ 9. It converts mechanical energy into electrical energy.___________________10. Force that makes the free charges in the rod moves, at the upper end creating an excess of positive charge and of a negative charge at the lower end.___________________11. Unit of a magnetic field.___________________12. A current measuring device.___________________13. Current caused by changing magnetic field in the circuit.___________________14. Equation of emf when v is not perpendicular to the field B.

In a diagram, how do we represent areas in which the electric field is stronger?By drawing the field lines closer togetherBy using different colours for different field linesBy making the field lines thickerBy adding labels to different areas of the diagram2A small positive charge is placed into an electric field.  In which direction will it experience an electric force?At right angles to the field linesOpposite to the direction in which the field lines are pointingIn the same direction in which the field lines are pointingDirectly towards a negative charge3A small negative charge is placed into an electric field.  In which direction will it experience an electric force?Opposite to the direction in which the field lines are pointingIn the same direction in which the field lines are pointingAt right angles to the field linesDirectly towards a negative charge4What is meant by an electric field?A region in which a charged particle will experience a forceAn area of land which is being used for the generation of electricityA large collection electrical chargesA board which can be used for the building of an electric circuit

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