State and prove Gauss's law in electrostatics.

State and prove Hooke's law.

State Gauss's law in electrostatics. Using this law derive an expression for the electric field due to a uniformly charged infinite plane sheet.

State Gauss's law in electrostatics. Use this law to derive an expression for the electric field due to an infinitely long straight wire of linear charge density lamda cm^(-1)

What is the nature of Gaussian surface involved in Gauss's law of electrostatics?

The unity of the electriec and magnetic waves was found by Maxwell from (i) Guss's law in electrostatics (ii) Gauss's law in magnetism (iii) Faraday's law of electromagnetic induction. (iv) Ampere's law with displacement current.

State the limitation of Coulomb's law in electrostatics.