What Is S.i System?
This system is now internationally accepted. It stands for the system International d’ units. These are the metre (m) for length, the kilogram (kg) for mass, the second (s) for the time, Kelvin (k) for temperature, ampere (A) for the current, candela (cd) for light intensity and mole (mol) for amount of substance. This system is used by almost all the countries of the world.