Welcome
Username or Email:

Password:


Missing Code




[ ]
[ ]
Online
  • Guests: 67
  • Members: 0
  • Newest Member: omjtest
  • Most ever online: 396
    Guests: 396, Members: 0 on 12 Jan : 12:51
Members Birthdays:
All today's birthdays', congrats!
Capper (60)
cereus (73)
Mcanderson (43)


Next birthdays
11/06 dan (37)
11/06 rchydro (64)
11/06 CapRack (30)
Contact
If you need assistance, please send an email to forum at 4hv dot org. To ensure your email is not marked as spam, please include the phrase "4hv help" in the subject line. You can also find assistance via IRC, at irc.shadowworld.net, room #hvcomm.
Support 4hv.org!
Donate:
4hv.org is hosted on a dedicated server. Unfortunately, this server costs and we rely on the help of site members to keep 4hv.org running. Please consider donating. We will place your name on the thanks list and you'll be helping to keep 4hv.org alive and free for everyone. Members whose names appear in red bold have donated recently. Green bold denotes those who have recently donated to keep the server carbon neutral.


Special Thanks To:
  • Aaron Holmes
  • Aaron Wheeler
  • Adam Horden
  • Alan Scrimgeour
  • Andre
  • Andrew Haynes
  • Anonymous000
  • asabase
  • Austin Weil
  • barney
  • Barry
  • Bert Hickman
  • Bill Kukowski
  • Blitzorn
  • Brandon Paradelas
  • Bruce Bowling
  • BubeeMike
  • Byong Park
  • Cesiumsponge
  • Chris F.
  • Chris Hooper
  • Corey Worthington
  • Derek Woodroffe
  • Dalus
  • Dan Strother
  • Daniel Davis
  • Daniel Uhrenholt
  • datasheetarchive
  • Dave Billington
  • Dave Marshall
  • David F.
  • Dennis Rogers
  • drelectrix
  • Dr. John Gudenas
  • Dr. Spark
  • E.TexasTesla
  • eastvoltresearch
  • Eirik Taylor
  • Erik Dyakov
  • Erlend^SE
  • Finn Hammer
  • Firebug24k
  • GalliumMan
  • Gary Peterson
  • George Slade
  • GhostNull
  • Gordon Mcknight
  • Graham Armitage
  • Grant
  • GreySoul
  • Henry H
  • IamSmooth
  • In memory of Leo Powning
  • Jacob Cash
  • James Howells
  • James Pawson
  • Jeff Greenfield
  • Jeff Thomas
  • Jesse Frost
  • Jim Mitchell
  • jlr134
  • Joe Mastroianni
  • John Forcina
  • John Oberg
  • John Willcutt
  • Jon Newcomb
  • klugesmith
  • Leslie Wright
  • Lutz Hoffman
  • Mads Barnkob
  • Martin King
  • Mats Karlsson
  • Matt Gibson
  • Matthew Guidry
  • mbd
  • Michael D'Angelo
  • Mikkel
  • mileswaldron
  • mister_rf
  • Neil Foster
  • Nick de Smith
  • Nick Soroka
  • nicklenorp
  • Nik
  • Norman Stanley
  • Patrick Coleman
  • Paul Brodie
  • Paul Jordan
  • Paul Montgomery
  • Ped
  • Peter Krogen
  • Peter Terren
  • PhilGood
  • Richard Feldman
  • Robert Bush
  • Royce Bailey
  • Scott Fusare
  • Scott Newman
  • smiffy
  • Stella
  • Steven Busic
  • Steve Conner
  • Steve Jones
  • Steve Ward
  • Sulaiman
  • Thomas Coyle
  • Thomas A. Wallace
  • Thomas W
  • Timo
  • Torch
  • Ulf Jonsson
  • vasil
  • Vaxian
  • vladi mazzilli
  • wastehl
  • Weston
  • William Kim
  • William N.
  • William Stehl
  • Wesley Venis
The aforementioned have contributed financially to the continuing triumph of 4hv.org. They are deserving of my most heartfelt thanks.
Forums
4hv.org :: Forums :: General Science and Electronics
« Previous topic | Next topic »   

What is capacitance?

Move Thread LAN_403
Hazel1919
Wed Feb 22 2012, 02:38PM Print
Hazel1919 Registered Member #1376 Joined: Wed Mar 05 2008, 08:31AM
Location:
Posts: 49
I was wondering what you think of capacitance.

Also found this video interesting Link2

Thank you.
Back to top
Tetris
Wed Feb 22 2012, 08:10PM
Tetris Registered Member #4016 Joined: Thu Jul 21 2011, 01:52AM
Location: Gainesville, FL
Posts: 660
That's why they are my favorite component. They're so cool! My opinion on caps: they are awesome, important, and cause the fire drills that randomly go off during your Electronics Class to get that strobe-y effect. They are my favorite components, and if you are to relate your personality to a component, this would be it. The amount of time it takes for me to explode with anger is at a direct variation of the amount of stimulant I get, and in the amount. The more the stimulants, the faster I get angry, and if the time comes to "discharge" I release all my anger at once. Also if anything comes along to "short my terminals." Of course, a cap dissipates its charge over time. As for that video, I'd like to leave a charged leyden jar around in a crowded place, and watch from a distance as someone picks it up out of curiosity, then yelps. Of course, it wouldn't be so charged that he/she would be injured, just to surprise them :P.
Back to top
Hazel1919
Thu Feb 23 2012, 06:15PM
Hazel1919 Registered Member #1376 Joined: Wed Mar 05 2008, 08:31AM
Location:
Posts: 49
I found the second half of the demonstration by MIT that is linked in the first post of most interest.
That would seem to imply that glass can store electrical energy in it's physical form.
Back to top
Mattski
Fri Feb 24 2012, 06:45AM
Mattski Registered Member #1792 Joined: Fri Oct 31 2008, 08:12PM
Location: University of California
Posts: 527
This effect with Leyden jars appears to do with a bit of moisture on the surface of the glass jar forming a capacitor electrode which is charged by corona from the metal electrode: Link2, Link2

But dielectrics can store energy either in polarized molecules or trapped charges (trapped electrons, or missing electrons).
Back to top
teravolt
Sat Feb 25 2012, 02:51AM
teravolt Registered Member #195 Joined: Fri Feb 17 2006, 08:27PM
Location: Berkeley, ca.
Posts: 1111
I see them as a bucket of elecrons
Back to top

Moderator(s): Chris Russell, Noelle, Alex, Tesladownunder, Dave Marshall, Dave Billington, Bjørn, Steve Conner, Wolfram, Kizmo, Mads Barnkob

Go to:

Powered by e107 Forum System
 
Legal Information
This site is powered by e107, which is released under the GNU GPL License. All work on this site, except where otherwise noted, is licensed under a Creative Commons Attribution-ShareAlike 2.5 License. By submitting any information to this site, you agree that anything submitted will be so licensed. Please read our Disclaimer and Policies page for information on your rights and responsibilities regarding this site.