Current

Electric current means, depending on the context, a flow of electric charge or the rate of flow of electric charge. This flowing electric charge is typically carried by moving electrons, in a conductor such as wire.

The SI unit for measuring the rate of flow of electric charge is the ampere, which is charge flowing through some surface at the rate of one coulomb per second. Electric current is measured using an ammeter.

The current flowing through a component can be calculated using Ohms law with this equasion :- I = V/R I=amps, V=volts, R=resistance

SI multiples for Amp (A)

Submultiples				Multiples
Value	Symbol	Name		Value	Symbol	Name
10−1 A	dA	deciAmp		101 A	daA	decaAmp
10−2 A	cA	centiAmp		102 A	hA	hectoAmp
10−3 A	mA	milliAmp		103 A	kA	kiloAmp
10−6 A	µA	microAmp		106 A	MA	megaAmp
10−9 A	nA	nanoAmp		109 A	GA	gigaAmp
10−12 A	pA	picoAmp		1012 A	TA	teraAmp
10−15 A	fA	femtoAmp		1015 A	PA	petaAmp
10−18 A	aA	attoAmp		1018 A	EA	exaAmp
10−21 A	zA	zeptoAmp		1021 A	ZA	zettaAmp
10−24 A	yA	yoctoAmp		1024 A	YA	yottaAmp
Common prefixed units are in bold face excluding straight Amp.

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