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Centiampere (cA) Unit Definition
The centiampere is a multiple of the unit ampere (A) for electric current. The International System of Units (SI) defines the prefix centi (c) as a factor of one hundredth or 0.01. Per this definition, one centiampere is 0.01 amperes. The centiampere is represented by the symbol cA.
SI Multiples
A table of various electric current units derived from SI multiples:
Submultiples |
Multiples |
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Scientific Notation |
Value |
Prefix |
Name |
Scientific Notation |
Value |
Prefix |
Name |
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 |
Hecto (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 |
Micro (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)
Electromagnetic Unit of Current (emu)
Electronic Charge (q)
Electrostatic Unit of Current (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)
Foot Pound-Force (ft∙lbf)
Foot Poundal (ft∙pdl)
Franklin (Fr)
Gaussian Electric Current (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℧)
- Hectosiemens (hS)
- Hectowatt (hW)
- Hectoweber (hWb)
Horsepower Electric (hp)
Horsepower International (hp)
Horsepower Metric (hp)
Horsepower Water (hp)
Inch Ounce-Force Revolution (in∙ozf)
Joule (J)
- Kiloampere (kA)
Kilocalorie I.T. (kcal)
- Kilocoulomb (kC)
Kilogram-Force Meter (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)
- Microcoulomb (μC)
- Micromho (μ℧)
- Microsiemens (μS)
- Microwatt (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)
Pound Square Foot Per Cubic Second (lb∙ft2/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 (S)
Statampere (statA)
Statcoulomb (statC)
- Teraampere (TA)
- Teracoulomb (TC)
- Teramho (T℧)
- Terasiemens (TS)
- Terawatt (TW)
- Teraweber (TWb)
Ton of Refrigeration (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)
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Related Definitions
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Sources
“Ampere.” Wikipedia, Wikimedia Foundation, 3 Sept. 2023, en.wikipedia.org/wiki/Ampere.