[" What is electric power ? Derive an expression for the "],[" same.Give its 'SI' unit."]

What is electric power? Give its unit.

What is electric dipole ? Write its SI unit.

What is meant by electric power ? Give its SI unit.

Define electric potential difference between two points in an electric field and derive an expression for it. Also give S.I. unit of electric potential differnce.

What is mobility?Give its SI unit.

What is electrical resistivity ? How does it depend om temperature. Give its SI unit.