- #1
Hydrous Caperilla
- 62
- 7
http://hyperphysics.phy-astr.gsu.edu/hbase/electric/capeng2.html#c1
So I have some doubts in this. All I could understand from the derivation is that the battery is doing external work in pushing the electron from the positive plate to the negative plate and this is what is converted into energy according to my teacher.Now I have some questions
1)Does potential between the plates is created rapidly in a short time and that's why we take the potential constant during the integration? In the integeration U=Vdq so they have taken the potential to be constant and what does dq mean here...Isn't the capacitor charged already
2) How can battery push electrons across the capacitor when capacitor blocks any path of current
30Why is energy of the capacitor channging so that we have to integrate it?
So I have some doubts in this. All I could understand from the derivation is that the battery is doing external work in pushing the electron from the positive plate to the negative plate and this is what is converted into energy according to my teacher.Now I have some questions
1)Does potential between the plates is created rapidly in a short time and that's why we take the potential constant during the integration? In the integeration U=Vdq so they have taken the potential to be constant and what does dq mean here...Isn't the capacitor charged already
2) How can battery push electrons across the capacitor when capacitor blocks any path of current
30Why is energy of the capacitor channging so that we have to integrate it?
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