All Questions
Tagged with electrolytic-capacitor supercapacitor
7
questions
0
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1
answer
68
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Cyclic Voltammetry for a Capacitor - Positive Current, Potential is decreasing?
In the boxed red region, why is the potential decreasing when the current is still positive? To my understanding, when the current is still positive (i.e. not changing direction), the capacitor will ...
- 1
9
votes
4
answers
6k
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Using capacitors as a battery back-up
I have a device which is operated from a 12 VDC 10 A power supply and draws 8 A in operation.
I need to run this device for at least 20 seconds when the 12 V power supply is lost upon a power failure. ...
- 99
1
vote
1
answer
129
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Why conductor having charge(let say 1C) have tremendous potential but same conductor used in capacitor have low voltage?
When we talk about electrolytic capacitors or the supercapacitors (EDLC), then we know that we can store large amount of charges in it.
Since in electrolytic capacitors the aluminum plate acts as ...
- 81
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3
answers
2k
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Can we use a capacitor with battery to fast charge it?
Consider this. Many capacitors connected in parallel to an input line, those capacitors are in series connected to battery. Whenever we need to charge, we plug in adapter that charges the capacitors. ...
1
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3
answers
2k
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Charging 2 super capacitors in series
I have recently received my order of 2 2.7V 500F super capacitors from eBay.
After much searching, my yet unanswered question is:
Can I connect both of these capacitors in series and charge with 5V ...
user235520
0
votes
1
answer
254
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Two modes of electrostatic force with charged capacitors?
During a charged state of a capacitor (Regardless of the type of capacitor),
Simple parallel plate:
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Parallel plate with dielectric material in the gap:
]3
Supercapacitor:
How is the ...
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18
votes
3
answers
4k
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How to Measure Very Large Capacitance e.g. Super/Ultra Capacitors
I have recently acquired a couple of mysterious ultra/super capacitors from my brother. Apparently he doesn't remember any of the specifications or even brand... To further complicate matters, they ...
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