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| where does 1/2 come from in capacitor energy calculation |
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| 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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