Capacitance to current

Thread Starter

keyboardcowboy

Joined Dec 31, 2012
25
A capacitor stores charge and current is the measure of flow of charge, when a capacitor discharges (in a circuit or by connecting a LED across its terminals) the stored charge flows so is it possible to convert charge stored in a capacitor to amps ? Or in other words how much current can a charged capacitor supply?
 

mik3

Joined Feb 4, 2008
4,843
It will supply this current:

i=Vcap/Rcircuit

The current will change all the time because the voltage across the capacitor will be decreasing.
 

wayneh

Joined Sep 9, 2010
17,496
A farad of capacitor capacity gives 1 volt per coulomb of charge, which is 1 amp-second. So a 1F cap charged to, say, 6volts, can deliver 1 amp for 1 second as the voltage falls from 6V to 5V.
 
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