Write the relation between Joule, volt and coulomb.

State Coulomb.s law in electrostatics and hence define units of charge in CGS (ESU) and SI system. Derive the relation between coulomb and stat-coulomb?

Write the relation between bulk modulus and Young's modulus.

Define 1 electronvolt. Deduce the relationship between Joule and eV.

Write the relation between current and Drift velocity. Name the symbols used.