Electrostatics of Conductors and Dielectrics

Two metallic spheres of radii $1 \mathrm{cm}$ and $3 \mathrm{cm}$ are given charges of $-1\times {10}^{-2} \mathrm{C}$ and $5\times {10}^{-2 }\mathrm{C}$ respectively. If these are connected by a conducting wire, the final charge on the bigger sphere is

Two identical conducting balls having positive charges $q_1$and $q_{2 }$are separated by a centre to centre distance r. If they are made to touch each other and then separated to the same distance, the force between them will be

Discuss the various properties of conductors in electrostatic equilibrium.

Explain dielectrics in detail and how an electric field is induced inside a dielectric.

What is dielectric strength?

What is polarisation in electrostatics?

Write a short note on ‘electrostatic shielding’