David Mack Posted May 25, 2018 Report Share Posted May 25, 2018 If you need some help understanding these: 2 Link to comment Share on other sites More sharing options...
Robbo Posted May 25, 2018 Report Share Posted May 25, 2018 1 Link to comment Share on other sites More sharing options...
Alan de Enfield Posted May 25, 2018 Report Share Posted May 25, 2018 Link to comment Share on other sites More sharing options...
Dr Bob Posted May 25, 2018 Report Share Posted May 25, 2018 36 minutes ago, David Mack said: If you need some help understanding these: For me though, it looks like you need to understand volts, amps and ohms to understand the diagram, and then it doesnt work as the amp is stuck in the hole so volts are positive, ohms are between infinity and zero but amps not moving so zero.....and then when you try and work out AmpHrs .....! Link to comment Share on other sites More sharing options...
mark99 Posted May 25, 2018 Report Share Posted May 25, 2018 (edited) Agree. In house joke. Only vaguely of interest cos of the rsekick. Edited May 25, 2018 by mark99 Link to comment Share on other sites More sharing options...
Robbo Posted May 25, 2018 Report Share Posted May 25, 2018 Link to comment Share on other sites More sharing options...
dunfixing Posted May 26, 2018 Report Share Posted May 26, 2018 Amps ohms volts, easy way to understand is to compare it to water. Volts = water volume, amps = water pressure and ohms(resistance) = restriction to flow, ie smaller pipe. best way to understand if you are not familiar with electricary. Link to comment Share on other sites More sharing options...
Batavia Posted May 26, 2018 Report Share Posted May 26, 2018 4 hours ago, dunfixing said: Amps ohms volts, easy way to understand is to compare it to water. Volts = water volume, amps = water pressure and ohms(resistance) = restriction to flow, ie smaller pipe. best way to understand if you are not familiar with electricary. Up to a point... Volts = pressure Current = flowrate Ohms as described Chris G Link to comment Share on other sites More sharing options...
Alan de Enfield Posted May 26, 2018 Report Share Posted May 26, 2018 5 hours ago, dunfixing said: Amps ohms volts, easy way to understand is to compare it to water. Volts = water volume, amps = water pressure and ohms(resistance) = restriction to flow, ie smaller pipe. best way to understand if you are not familiar with electricary. 10 minutes ago, Batavia said: Up to a point... Volts = pressure Current = flowrate Ohms as described Chris G That's all clear then We have : Amps = Pressure, & Volts = Pressure Maybe Ohms = the pressure applied by the resistance Link to comment Share on other sites More sharing options...
WotEver Posted May 26, 2018 Report Share Posted May 26, 2018 2 minutes ago, Alan de Enfield said: That's all clear then We have : Amps = Pressure, & Volts = Pressure Maybe Ohms = the pressure applied by the resistance Batavia is correct insofar as a water analogy works. Volts = pressure (or head, if you prefer) Amps = flow rate, which is dictated both by the pressure and by... Resistance = restriction to the flow. That is directly analogous to a simple circuit. Link to comment Share on other sites More sharing options...
rusty69 Posted May 26, 2018 Report Share Posted May 26, 2018 Resistance is futile! Link to comment Share on other sites More sharing options...
Alan de Enfield Posted May 26, 2018 Report Share Posted May 26, 2018 3 minutes ago, WotEver said: Batavia is correct insofar as a water analogy works. I know. It is just that (as I read it) the thread was 'If you need some help understanding these' and we have (as is usual) two totally different and conflicting answers. Which is not overly helpful. There may not be a correct answer in such questions as "which toilet is the best", but in physics / science / maths etc there is only one correct answer, any other is incorrect. Link to comment Share on other sites More sharing options...
Theo Posted May 26, 2018 Report Share Posted May 26, 2018 5 hours ago, dunfixing said: Amps ohms volts, easy way to understand is to compare it to water. Volts = water volume, amps = water pressure and ohms(resistance) = restriction to flow, ie smaller pipe. best way to understand if you are not familiar with electricary. I fear that you have mixed this up. Electrical incongnoscenti take no notice of the above. I copy, swap add a bit and repost: Amps ohms volts, easy way to understand is to compare it to water. Volts = water pressure charge = water volume current = water flow rate and ohms(resistance) = restriction to flow, ie smaller pipe. best way to understand if you are not familiar with electricary. 1 Link to comment Share on other sites More sharing options...
rusty69 Posted May 26, 2018 Report Share Posted May 26, 2018 Well, I hope that has cleared things up for all you electrical wannabes Link to comment Share on other sites More sharing options...
Theo Posted May 26, 2018 Report Share Posted May 26, 2018 For anyone who is anything but totally conversant with electrical concepts my advice would be to expunge all memory of this thread from your brains and start again somewhere reliable. The confusion sowed here could cause much anguish. ? N Link to comment Share on other sites More sharing options...
rusty69 Posted May 26, 2018 Report Share Posted May 26, 2018 (edited) There's no place like ohm There's no place like ohm There's no place like ohm Edited May 26, 2018 by rusty69 Link to comment Share on other sites More sharing options...
WotEver Posted May 26, 2018 Report Share Posted May 26, 2018 5 minutes ago, Theo said: For anyone who is anything but totally conversant with electrical concepts my advice would be to expunge all memory of this thread from your brains and start again somewhere reliable. The confusion sowed here could cause much anguish. Actually, with the exclusion of Dunfixin’s post they’ve all been correct. Some have been simpler to understand than others but none of the rest have been wrong (unless I missed something). Link to comment Share on other sites More sharing options...
Robbo Posted May 26, 2018 Report Share Posted May 26, 2018 1 Link to comment Share on other sites More sharing options...
Theo Posted May 26, 2018 Report Share Posted May 26, 2018 2 hours ago, WotEver said: Actually, with the exclusion of Dunfixin’s post they’ve all been correct. Some have been simpler to understand than others but none of the rest have been wrong (unless I missed something). You are right, of course, but confusion is someting that is not easily (allayed (allaid? alaid?)) (oh Damn It!) got rid of so I thought that the best thing would be to forget about the whole thread and start again. If I were a mod again I would seriously consider the deletion of the whole thread. N Link to comment Share on other sites More sharing options...
dunfixing Posted May 27, 2018 Report Share Posted May 27, 2018 Hi, I only used the water analogy because not everyone can grasp the abstract reality of electricity, something that can’t be seen, electron charge and flow, emf, etc. very boring when I went to collage a long time ago. If anyone wants to look it up. Google AC theory. It will blow your mind and send you to sleep. best not to touch the live wire while standing in a bucket of water Link to comment Share on other sites More sharing options...
Theo Posted May 27, 2018 Report Share Posted May 27, 2018 3 minutes ago, dunfixing said: Hi, I only used the water analogy because not everyone can grasp the abstract reality of electricity, something that can’t be seen, electron charge and flow, emf, etc. very boring when I went to collage a long time ago. If anyone wants to look it up. Google AC theory. It will blow your mind and send you to sleep. best not to touch the live wire while standing in a bucket of water How dare you say thate electrical theory is boring! It's something to meditate on and consider and wonder at the logic of the SI system. How could anyone not love a definition of a volt like this: "A potential differenct of 1 volt exists between two points when 1 joule of work is done in transfering 1 coulomb of charge between the two points" or this "A generator has an emf of 1 volt when one joule of work is done in transferring 1 coulomb of charge around the complete circuit." I could go on but emotion is getting the better of me and I fear for the effect of tears of happiness on the keyboard. Ah me... Link to comment Share on other sites More sharing options...
Murflynn Posted May 27, 2018 Report Share Posted May 27, 2018 there ain't arf some bullshit spouted on this forum. ...... if only peeps would restrict their advice/comments to things that they really understand, thus avoiding unnecessary confusion and dissent. 1 Link to comment Share on other sites More sharing options...
Theo Posted May 28, 2018 Report Share Posted May 28, 2018 19 hours ago, Murflynn said: there ain't arf some bullshit spouted on this forum. ...... if only peeps would restrict their advice/comments to things that they really understand, thus avoiding unnecessary confusion and dissent. I do hope that comment wasn't driected at me Mr Murflynn. It wasn't bullshit or even cowpoo. It was the real gen but not, in this case the slightest bit of use. N Link to comment Share on other sites More sharing options...
Murflynn Posted May 28, 2018 Report Share Posted May 28, 2018 4 hours ago, Theo said: I do hope that comment wasn't driected at me Mr Murflynn. It wasn't bullshit or even cowpoo. It was the real gen but not, in this case the slightest bit of use. N not at all, Theo. You obviously understood the inter-relationships exactly as intended by the bright spark who envisaged the piping similarity. Link to comment Share on other sites More sharing options...
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