UNIT: 1 Electrostatics — ten marks questions

1. What is an electric dipole? Derive an expression for the electric field due to an electric
dipole ata pointon itsaxial line. (M- 06,J-06, M-09,J-10, 0-10,M-11)

2. Derive an expression for electric potential due at a point to an electric dipole.
Discus the special cases. (0-06, M -08, J -08, M -10, 0-11)

3. Deduce an expression for equivalent capacitance of capacitors connected (i) parallel (ii) series. (J - 07, 0- 07)

4. Principle, construction and working of Van de Graaff generator. What is its use? (0- 08, 0- 09, 0- 12)

5. Derive an expression for electric field due to an electric dipole at a point along the equatorial line. (M -07, J - 09)

6. State Gauss’s law. Applying this calculate electric field due to (i) an infinitely long straight charged with
uniform charge density. (J - 11, M - 12)

7. Explain the principle of a capacitor. Deduce an expression for the capacitance of a parallel plate capacitor. (J -12)

8. What is dielectric? Explain the effect of introducing a dielectric slab between the plates of a parallel plate capacitor.

9. State Gauss law using this find an expression for electric field due to uniformly charged spherical shell at a point
(i)outside the shell (ii) on the surface (iii) inside the shell.