whatare SI system of units? write the 7SI system,it's unit and symbols?
Answers
Explanation:
The system allows for an unlimited number of additional units, called derived units, which can always be represented as products of powers of the base units.[Note 1] Twenty-two derived units have been provided with special names and symbols.[Note 2] The seven base units and the 22 derived units with special names and symbols may be used in combination to express other derived units,[Note 3] which are adopted to facilitate measurement of diverse quantities. The SI system also provides twenty prefixes to the unit names and unit symbols that may be used when specifying power-of-ten (i.e. decimal) multiples and sub-multiples of SI units. The SI is intended to be an evolving system; units and prefixes are created and unit definitions are modified through international agreement as the technology of measurement progresses and the precision of measurements improves
Answer: SI units :- International system of units was introduced in 1960. Our calculations mainly will be in this system of units.
1. Mass:- Unit (kilogram) Symbol (kg)
2. Length:- Unit(metre) Symbol(m)
3. Time:- Unit(second) Symbol(s)
4. Temperature:- Unit(kelvin) Symbol(k)
5. Electric current:- Unit(ampere) Symbol (A)
6. Luminous intensity:- Unit(candela) Symbol(cd)
7. Amount of water:- Unit(mole) Symbol(mol)
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