What is Ampere? – Definition, Symbol and Unit

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What is Ampere
What is Ampere

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

 

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