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where does 1/2 come from in capacitor energy calculation
brownt:
Hi,
where does 1/2 come from with the 1/2CV2 calculation for energy in a capacitor?
Bassman59:
--- Quote from: brownt on July 12, 2018, 05:12:02 am ---Hi,
where does 1/2 come from with the 1/2CV2 calculation for energy in a capacitor?
--- End quote ---
integration!
GregDunn:
When you integrate C*V wrt V you get 1/2 CV2. Simple as that.
intabits:
(similar for kinetic energy: E=1/2MV^2, And I think I've seen another one for some other form of energy)
see here: http://hyperphysics.phy-astr.gsu.edu/hbase/electric/capeng2.html#c3
(You may need to click the "show more" hypertext)
EEVblog:
The more interesting question is, where does half the energy go when charging a capacitor ;D
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