SI Base Unit Definitions and In Units and Measurements

Let's go over the definitions of the various S.I units now that you've grasped the fundamental ideas of units and measures.

Metre - The length of the path taken by light in a vacuum in a second is measured as 1 metre. 

Second - It is the SI unit of time established in terms of the frequency of radiation at which caesium atoms change states. It's written in s.

Candela - It is the unit of luminous intensity and is defined as the magnitude of the electromagnetic field.

Ampere - The ampere is the SI unit of electric current and represents one coulomb of electricity flowing every second.

Kilogram -  It is the SI unit of mass and is the quantitative measure of inertia and is expressed as kg.m2.s-1

Kelvin - It is defined as 1/273.16 (3.6609 x 10 -3) thermodynamic temperature of the triple point of water. 

Mole - It is defined as 6.02214076 × 1023 of a substance.