Capacitors and energy

[Kevin Weddle]

Capacitors store energy w=1/2 CV^2. We take joules per s and multiply by s to give joules. We multiply because the functions are constant and integration is made simple. Joules per s is power and power is a function of current and voltage. So the capacitor can be said to store current. So what? This may clear up some confusion that existed in another topic area.

 

[audioguru2]

Kevin,
Current is a FLOW of electrons. When a capacitor is charged, the current flow stops. The capacitor stores energy, which is its charged voltage and the potential, or ability, to deliver a current during discharge.

 

[ante1]

Amen ! ;D

Ante :