1 coulomb is the amount of electric charge carried by a current of 1 ampere flowing for 1 second.
- 1 C = 1 A · 1 s
It can also be defined in terms of capacitance and voltage, where one coulomb is defined as one farad of capacitance times one volt of electric potential difference:
1 C = 1 F · 1 V
SI multiples
| Multiple |
Name |
Symbol |
|
Multiple |
Name |
Symbol |
| 100 |
coulomb |
C |
|
|
|
|
| 101 |
decacoulomb |
daC |
10–1 |
decicoulomb |
dC |
| 102 |
hectocoulomb |
hC |
10–2 |
centicoulomb |
cC |
| 103 |
kilocoulomb |
kC |
10–3 |
millicoulomb |
mC |
| 106 |
megacoulomb |
MC |
10–6 |
microcoulomb |
µC |
| 109 |
gigacoulomb |
GC |
10–9 |
nanocoulomb |
nC |
| 1012 |
teracoulomb |
TC |
10–12 |
picocoulomb |
pC |
| 1015 |
petacoulomb |
PC |
10–15 |
femtocoulomb |
fC |
| 1018 |
exacoulomb |
EC |
10–18 |
attocoulomb |
aC |
| 1021 |
zettacoulomb |
ZC |
10–21 |
zeptocoulomb |
zC |
| 1024 |
yottacoulomb |
YC |
10–24 |
yoctocoulomb |
yC |
C
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