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Ampere (a) Enhedsdefinition
The ampere (A), often shortened to the amp, is a unit of electric current in the International System of Units (SI). One ampere is equal to 1 coulomb (C), or 6.241509074×1018 electrons worth of charge, moving past a point in a second (s). The ampere is named after French mathematician and physicist André-Marie Ampère (1775–1836), considered the father of electromagnetism along with Danish physicist Hans Christian Ørsted.
SI Multiples
A table of various electric current units derived from SI multiples:
Submultiples |
Multiples |
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Scientific Notation |
Værdi |
Præfiks |
Navn |
Scientific Notation |
Værdi |
Præfiks |
Navn |
10-1 A |
0.1 A |
Deci (d) | Deciampere (DA) | 101 A |
10 A |
Deca (DA) | Decaampere (DAA) |
10-2 A |
0.01 A |
Centi (c) | Centiampere (CA) | 102 A |
100 A |
Hekto (H) | Hectoampere (HA) |
10-3 A |
0.001 A |
Milli (M) | Milliampere (MA) | 103 A |
1000 A |
Kilo (k) | Kiloampere (ka) |
10-6 A |
0.000001 A |
Mikro (µ) | Microampere (µA) | 106 A |
1000000 A |
Mega (M) | Megaampere (MA) |
10-9 A |
0.000000001 A |
Nano (n) | Nanoampere (NA) | 109 A |
1000000000 A |
Giga (g) | Gigaampere (GA) |
10-12 A |
0.000000000001 A |
Pico (P) | Picoampere (PA) | 1012 A |
1000000000000 A |
Tera (t) | Teraampere (TA) |
10-15 A |
0.000000000000001 A |
Femto (f) | Femtoampere (FA) | 1015 A |
1000000000000000 A |
PETA (P) | Petaampere (PA) |
10-18 A |
0.000000000000000001 A |
Atto (a) | Attoampere (AA) | 1018 A |
1000000000000000000 A |
Exa (e) | Exaampere (EA) |
10-21 A |
0.000000000000000000001 A |
Zepto (Z) | Zeptoampere (ZA) | 1021 A |
1000000000000000000000 A |
Zetta (Z) | Zettaampere (ZA) |
10-24 A |
0.000000000000000000000001 A |
Yocto (Y) | Yoctoampere (ya) | 1024 A |
1000000000000000000000000 A |
Yotta (Y) | Yottaampere (ya) |
10-27 A |
0.000000000000000000000000001 A |
Ronto (r) | Rontoampere (rA) | 1027 A |
1000000000000000000000000000 A |
Ronna (R) | Ronnaampere (RA) |
10-30 A |
0.000000000000000000000000000001 A |
Quecto (q) | Quectoampere (qA) | 1030 A |
1000000000000000000000000000000 A |
Quetta (Q) | Quettaampere (QA) |
Other Electric Current Unit Definitions
Abampere (ABA)
Abcoulomb (ABC)
- Ampere (a)
- Attoampere (AA)
- Attocoulomb (AC)
- Attomho (a℧)
- Attosiemens (as)
- Attowatt (aw)
- Attoweber (AWB)
Biot (BI)
Btu I.T. (BTU)
Calorie I.T. (cal)
- Centiampere (CA)
- Centicoulomb (CC)
- Centimho (c℧)
- Centisiemens (CS)
- Centiwatt (CW)
- Centiweber (CWB)
Cheval Vapeur (CV)
Clusec (Clusec)
- Coulomb (C)
Coulomb International (C)
- Decaampere (DAA)
- Decacoulomb (DAC)
- Decamho (da℧)
- Decasiemens (DAS)
- Decawatt (DAW)
- Decaweber (Dawb)
- Deciampere (DA)
- Decicoulomb (DC)
- Decimho (d℧)
- Decisiemens (DS)
- Deciwatt (DW)
- Deciweber (DWB)
- Dekaampere (DAA)
- Dekacoulomb (DAC)
- Dekamho (da℧)
- Dekasiemens (daS)
- Dekawatt (DAW)
- Dekaweber (daWb)
Dyne Centimeter (Dyncm)
Elektromagnetisk enhed (EMU)
Elektronisk ladning (Q)
Elektrostatisk enhed (ESU)
Erg (erg)
- Exaampere (EA)
- Exacoulomb (EC)
- Examho (e℧)
- Exasiemens (ES)
- Exawatt (EW)
- Exaweber (EWB)
Faraday Constant (F)
- Femtoampere (FA)
- Femtocoulomb (FC)
- Femtomho (f℧)
- Femtosiemens (FS)
- Femtowatt (FW)
- Femtoweber (FWB)
Fodpundkraft (ft ∙ lbf)
Fod pundal (ft ∙ pdl)
Franklin (FR)
Gaussisk elektrisk strøm (G)
- Gigaampere (GA)
- Gigacoulomb (GC)
- Gigamho (G℧)
- Gigasiemens (GS)
- Gigawatt (GW)
- Gigaweber (GWB)
Gilbert (GB)
Gram-Force Centimeter (GF ∙ CM)
- Hectoampere (HA)
- Hectocoulomb (HC)
- Hectomho (H℧)
- Hektosiemens (HS)
- Hectowatt (HW)
- Hectoweber (HWB)
Hestekræfter Electric (HP)
Hestekræfter International (HP)
Hestekræfter Metric (HP)
Hestekræfter vand (HP)
Tomme ounce-force revolution (i ∙ ozf)
Joule (J)
- Kiloampere (ka)
Kilocalorie I.T. (Kcal)
- Kilocoulomb (KC)
Kilogrammåler (kgf ∙ m)
- Kilomho (k℧)
Kilopond meter (KPM)
- Kilosiemens (KS)
- Kilowatt (KW)
- Kiloweber (KWB)
- Megaampere (MA)
- Megacoulomb (MC)
- Megamho (m℧)
- Megasiemens (MS)
- Megawatt (MW)
- Megaweber (MWB)
- MHO (℧)
- Microampere (μA)
- Mikrocoulomb (μC)
- Micromho (μ℧)
- Microsiemens (μs)
- Mikrobølger (μW)
- Microweber (μWB)
- Milliampere (MA)
- Millicoulomb (MC)
- Millimho (m℧)
Million Btu I.T. (MMBTU)
- Millisiemens (MS)
- Milliwatt (MW)
- Milliweber (MWB)
- Nanoampere (NA)
- Nanocoulomb (NC)
- Nanomho (N℧)
- Nanosiemens (NS)
- Nanowatt (NW)
- Nanoweber (NWB)
Newton Meter (N ∙ M)
- Petaampere (PA)
- Petacoulomb (PC)
- Petamho (P℧)
- Petasiemens (PS)
- Petawatt (PW)
- Petaweber (PWB)
Pferdestarke (PS)
- Picoampere (PA)
- Picocoulomb (PC)
- Picomho (P℧)
- Picosiemens (PS)
- Picowatt (PW)
- Picoweber (PWB)
Poncelet (P)
Pund firkantet fod pr. Kubik sekund (lb ∙ ft 2 /s
) - Quectoampere (qA)
- Quectocoulomb (qC)
- Quectomho (q℧)
- Quectosiemens (qS)
- Quectowatt (qW)
- Quectoweber (qWb)
- Quettaampere (QA)
- Quettacoulomb (QC)
- Quettamho (Q℧)
- Quettasiemens (QS)
- Quettawatt (QW)
- Quettaweber (QWb)
- Ronnaampere (RA)
- Ronnacoulomb (RC)
- Ronnamho (R℧)
- Ronnasiemens (RS)
- Ronnawatt (RW)
- Ronnaweber (RWb)
- Rontoampere (rA)
- Rontocoulomb (rC)
- Rontomho (r℧)
- Rontosiemens (rS)
- Rontowatt (rW)
- Rontoweber (rWb)
- Siemens (r)
Statampere (Stata)
Statcoulomb (STATC)
- Teraampere (TA)
- Teracoulomb (TC)
- Teramho (T℧)
- Terasiemens (TS)
- Terawatt (TW)
- Teraweber (TWB)
Ton af køling (RT)
- Watt (w)
- Weber (WB)
- Yoctoampere (ya)
- Yoctocoulomb (YC)
- Yoctomho (y℧)
- Yoctosiemens (ys)
- Yoctowatt (YW)
- Yoctoweber (YWB)
- Yottaampere (ya)
- Yottacoulomb (YC)
- Yottamho (y℧)
- Yottasiemens (ys)
- Yottawatt (YW)
- Yottaweber (YWB)
- Zeptoampere (ZA)
- Zeptocoulomb (ZC)
- Zeptomho (Z℧)
- Zeptosiemens (ZS)
- Zeptowatt (ZW)
- Zeptoweber (ZWB)
- Zettaampere (ZA)
- Zettacoulomb (ZC)
- Zettamho (Z℧)
- Zettasiemens (ZS)
- Zettawatt (ZW)
- Zettaweber (ZWB)
Convert to Another Electric Current Unit
Relaterede definitioner
Ansvarsfraskrivelse
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Kilder
“Ampere.” Wikipedia, Wikimedia Foundation, 3 Sept. 2023, en.wikipedia.org/wiki/Ampere.