SI base unit
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The international system (SI) of units defines seven SI base units: physical units defined by an operational definition.
All other physical units can be derived from these base units: these are known as SI derived units. Derivation is by dimensional analysis. SI prefixes are used to abbreviate long numbers.
The following are the base units from which all others are derived; they are dimensionally independent.
See also
- International System of Measurements
- SI prefix
- meter
- ampere
- second
- speed of light
- electric constant
- magnetic constant
- kelvin
- physical constant
External links
el:Θεμελιώδεις μονάδες μέτρησης του Διεθνούς Συστήματος Μονάδωνko:SI 기본 단위 hr:SI osnovne jedinice is:SI grunneining lv:SI pamatvienības hi:मूल इकाइयाँ hu:SI-alapegység ms:Unit asas SI nl:SI-basiseenheidsl:Osnovna enota SI sr:СИ основне јединице fi:SI-perusyksiköt sv:SI-enhet
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