desperatejobseeker
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what if one plate of a capacitor is connected to the power, the other end is NC, is this capacitor neutral or charged?
Q = CV. if more voltage applied across capacitor, and there is path from supply to ground, capacitor will store more charge and in other word, more electrons in the plate.
Energy is nothing but E= QV = CV2.
If you increase voltage difference between plates they have to counter it and Positive plate will absorb more electrons , and to counter the positive holes created , ground plate will take more electrons to cancel the effect.
As you said their are no change in the charge ( it looks like that but not in real) but you can see the charge density across plates are now very dense. You can say it, the charge has increased. If Q increased energy increased. .
You explained it clearly, but I do not agree with your proposition about net charge constant.
See, there are two scenario, one where net charge is constant, another where is gets distributed.
Let me give one example,
hi Ratch, this sentence I can complete for Energy also. I don't disagree with your energy conservation theory, its well proved. But I can not say net energy or net charge is zero?the net charges of each cap before and after each reconnection and energizing are the same, i.e. zero.
And still be correct? No, the net charge of each capacitor is the same before and after, that is zero. In the problem, the cap was energized, not charged, to 12.5 joules.the net charges of each cap before and after each reconnection and energizing are the same, i.e. zero.
hi Ratch, this sentence I can complete for Energy also.
But I can not say net energy or net charge is zero?
If I follow your idea, supply shouldn't dissipate any charge and hence zero current, once it is connected across Capacitor?
You do not want to tell this, right? There is instantly a charge sharing across supply and Capacitor, and proportionally it gets charged. And supply do losses some charge/current.
I am also telling that, Electric energy increases with proportion to charge trapped in the capacitor. Actually capacitor uses electrical field to trap the charge.
Hi, did you read or did you measured sometime?The voltage supply did supply voltage and charge carriers to the capacitor, and received them back in return. For every electron given to the capacitor, one electron was returned back to the voltage supply.
Hi, did you read or did you measured sometime?
I think you need to read once again and if possible measure the supply, if it is having no charge dissipation.
Really its very tough, every time you come up with some new terminology. I don't think any current without ground (ground referenced source) .Ground is an abitrary designation in a circuit that has no effect on current.
I don't think any current without ground (ground referenced source) .
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