Define FPS system of units.

Define MKS system of units.

Define CGS system of units.

The system unit

What is the SI unit of amount of substance? (or) What is one mole in SI system of units? (or) Define one mole (S.I standard for amount of substance)

Assertion : SI system of units is a coherent system of units. Reason : In this system, all the derived units can be easily obtained from basic and supplementary units.

Define the SI unit of time. (or) What is one second in SI system of units?

Define th SI unit of electric current. (or) What is one second in SI system of units? (or) Define one ampere (S.I standard for current)