Which units are called basic and which are derivatives?

Units are considered basic, from which, by division or multiplication, it is possible to form derived units that have special designations and names. Seven units of measurement are adopted as the main ones: meter (unit of distance), kilogram (unit of mass), second (unit of time), ampere (unit of measurement of electric current), kelvin (unit of temperature), mol (unit of measurement of the amount of substance) , candela (a unit for measuring luminous intensity).



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