Easy question? Why is voltage drop proportional to current in a resistor?
 User Name Stay logged in? Password
 Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read Search

 Everything Else Anything related to audio / video / electronics etc) BUT remember- we have many new forums where your thread may now fit! .... Parts, Equipment & Tools, Construction Tips, Software Tools......

 Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
 2nd May 2013, 12:45 PM #1 M Gregg   Account disabled at member's request   Join Date: Jun 2010 Location: UK Easy question? Why is voltage drop proportional to current in a resistor? Easy question? Why is voltage drop proportional to current in a resistor? Ok We know the formulae...but what happens inside a resistor to create Voltage Drop? ie we have two values of resistor in series...so we get a voltage drop across them dependant on value of resistance and current drawn.. So what is setting the resistance?.. Just for fun... Regards M. Gregg
 2nd May 2013, 12:47 PM #2 AndrewT   diyAudio Member   Join Date: Jul 2004 Location: Scottish Borders resistance is the difficulty for the electron "cloud" to waft along the path (route). __________________ regards Andrew T.
M Gregg
Account disabled at member's request

Join Date: Jun 2010
Location: UK
Quote:
 Originally Posted by AndrewT resistance is the difficulty for the electron "cloud" to waft along the path (route).
Well,

Thats the question, why is the difficulty proptional to current and what is a voltage drop?

Regards
M. Gregg

 2nd May 2013, 01:03 PM #4 AndrewT   diyAudio Member   Join Date: Jul 2004 Location: Scottish Borders Imagine the electron cloud as a group of football (american or rugby) trying to get from one end of the field to the other. Place one opponent in the field and the group get to the other end easily (little difficulty) Place 10 opponents in the field. The difficulty has increased. Place 100 opponents in the filed. Now the route the players have to follow is quite convoluted. Some will even "bounce" back when hitting the immovable object. Place 1000 opponents in the field. Getting the idea? The voltage is the number of players trying to push their way along the field. The resistance is the number of opponents. The current is the number of balls that move along the route. (I'm not sure this last is a good analogy). __________________ regards Andrew T.
 2nd May 2013, 01:04 PM #5 AndrewT   diyAudio Member   Join Date: Jul 2004 Location: Scottish Borders Have you used the water flow analogy? __________________ regards Andrew T.
 2nd May 2013, 03:04 PM #6 M Gregg   Account disabled at member's request   Join Date: Jun 2010 Location: UK I get your point, However, these are examples of its like this or that... If you divide the resistance in half we have half the volt drop..at what point can you divide and have no volt drop? what I'm saying is the volt drop is not at one end of the resistance.. So what the question really is...is whats actually happening? IE why does resistance not exist in a super conductor..why should it be temp related?<
diyAudio Member

Join Date: Jan 2013
Location: West Australia, near to the beach, natural ambient sounds mostly.
Universal Entropy....

Quote:
 Originally Posted by M Gregg So what the question really is...is whats actually happening? IE why does resistance not exist in a super conductor..why should it be temp related?<
Hmmm, voltage drop is conversion of electrical energy to other forms of energy....the fine points of the hows and whys are maybe not fully answered yet ?.

Dan.

 2nd May 2013, 03:19 PM #8 AndrewT   diyAudio Member   Join Date: Jul 2004 Location: Scottish Borders heat ! __________________ regards Andrew T.
 2nd May 2013, 03:27 PM #9 bear expert in tautology diyAudio Member     Join Date: Apr 2002 Location: New York State USA in reality it is all magic... the very idea of converting an "electron" to the radiation of "heat" (heat having a rather specific wavelength range) is in and of itself magical. Why heat? Why not RF, why not xrays, why not visible light? (oh wait, we can do that too... heat+visible light = traditional lightbulb)... It's magic in a very real sense. Electronic Engineering is only concerned with working with what *does happen* not so much why it happens. Physics of course is concerned with figuring out sort of why it happens, but we are rather limited in that regard. Thus it all remains sort of a grand mystery. Like why does *anything* have the properties that it does?? Why does water have a liquid phase at all? And what's up with ice?? _-_-bear __________________ _-_-bear http://www.bearlabs.com -- Btw, I don't actually know anything, FYI -- every once in a while I say something that makes sense... ]
 2nd May 2013, 03:34 PM #10 M Gregg   Account disabled at member's request   Join Date: Jun 2010 Location: UK Yes, However current flow remains the same through the components..Volt drop is linked to the resistance value.. Regards M. Gregg

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules
 Forum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home Site     Site Announcements     Forum Problems Amplifiers     Solid State     Pass Labs     Tubes / Valves     Chip Amps     Class D     Power Supplies     Headphone Systems Source & Line     Analogue Source     Analog Line Level     Digital Source     Digital Line Level     PC Based Loudspeakers     Multi-Way     Full Range     Subwoofers     Planars & Exotics Live Sound     PA Systems     Instruments and Amps Design & Build     Parts     Equipment & Tools     Construction Tips     Software Tools General Interest     Car Audio     diyAudio.com Articles     Music     Everything Else Member Areas     Introductions     The Lounge     Clubs & Events     In Memoriam The Moving Image Commercial Sector     Swap Meet     Group Buys     The diyAudio Store     Vendor Forums         Vendor's Bazaar         Sonic Craft         Apex Jr         Audio Sector         Acoustic Fun         Chipamp         DIY HiFi Supply         Elekit         Elektor         Mains Cables R Us         Parts Connexion         Planet 10 hifi         Quanghao Audio Design         Siliconray Online Electronics Store         Tubelab     Manufacturers         AKSA         Audio Poutine         Musicaltech         Aussie Amplifiers         CSS         exaDevices         Feastrex         GedLee         Head 'n' HiFi - Walter         Heatsink USA         miniDSP         SITO Audio         Twin Audio         Twisted Pear         Wild Burro Audio

 Similar Threads Thread Thread Starter Forum Replies Last Post wushuliu Power Supplies 10 17th August 2012 08:02 PM giralfino Power Supplies 9 5th May 2010 05:18 PM MichaelJHuman Power Supplies 4 25th September 2009 05:50 AM Ziggy Tubes / Valves 25 15th February 2009 02:54 AM cbutterworth Power Supplies 2 3rd September 2007 02:21 AM

 New To Site? Need Help?

All times are GMT. The time now is 07:18 PM.