What is Ampere?
An ampere is a unit of measure of the rate of electron flow or current in an electrical conductor. One ampere of current represents one coulomb of electrical charge (6.24 x 1018 charge carriers) moving past a specific point in one second. Physicists consider current to flow from relatively positive points to relatively negative points; this is called conventional current or Franklin current.
Symbol and Unit
Name |
Symbol |
Conversion |
Example |
microampere(microamps) |
μA |
1 μA = 10-6A |
I = 40 μA = 40 × 10-6A |
milliampere(milliamps) |
mA |
1 mA = 10-3A |
I = 2 mA = 2 × 10-3 A |
ampere (amps) |
A |
– |
I = 20 A |
kiloampere(kiloamps) |
kA |
1 kA = 103A |
I = 4 kA = 4 × 103 A |
