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#11
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"Brian Reay" wrote in message
... gareth wrote: "Brian Reay" wrote in message ... gareth wrote: "Jim GM4DHJ ..." wrote in message ... but hertz means NOTHING whereas c/s describes cycles per second ...much better ... Whereas Ampere means ions per second Charge (Coulombs) per second. One Amp is one Coulomb per second. You missed the point, for, in your argument, think for yourself as to what is a Coulomb, also named after a person. I chose ions specifically and not electrons because of the flow in the electrolyte of lead acid cells, and in the electrolyte of electroplating tanks, Read my post again. You will note I did not mention electrons. The Amp is the flow of one Coulomb of charge, equivalent to 6.2 x 10^18 (or so) elemental charges. Feel free to check a basic physics text book, I appreciate not everyone knows the basics. Strange isn't it, people claim standards in schools are slipping but I know this is taught today, or at least was until I recently retired. Grow up Brian. Your attempt to stir things up in order to bandy about insults fails again. You have failed again because the discussion was that things should not be named after people and you slipped on a banana skin with your own mention of the Coulomb. |
#12
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"Spike" wrote in message
... On 20/01/2016 10:43, Brian Reay wrote: gareth wrote: "Jim GM4DHJ ..." wrote but hertz means NOTHING whereas c/s describes cycles per second ...much better ... Whereas Ampere means ions per second Charge (Coulombs) per second. One Amp is one Coulomb per second. Since the Ampere and the second are fundamental units in the SI system, and the Coulomb is a unit derived from them and therefore is not a fundamental unit, then one should say that 1 Coulomb = 1 Ampere-second Read up on 'SI fundamental units'. (The SI is but one in a number of arbitrary systems of units) ISTR that the SI system is based upon things that can actually be measured experimentally and not upon some theoretical bases that cannot be measured. But how does one fashion a pair of infinitely long parallel wires in order to be able to measure an ampere has yet to be revealed :-) |
#13
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"gareth" wrote in message
... "Brian Reay" wrote in message ... gareth wrote: "Brian Reay" wrote in message ... gareth wrote: "Jim GM4DHJ ..." wrote in message ... but hertz means NOTHING whereas c/s describes cycles per second ...much better ... Whereas Ampere means ions per second Charge (Coulombs) per second. One Amp is one Coulomb per second. You missed the point, for, in your argument, think for yourself as to what is a Coulomb, also named after a person. I chose ions specifically and not electrons because of the flow in the electrolyte of lead acid cells, and in the electrolyte of electroplating tanks, Read my post again. You will note I did not mention electrons. The Amp is the flow of one Coulomb of charge, equivalent to 6.2 x 10^18 (or so) elemental charges. Feel free to check a basic physics text book, I appreciate not everyone knows the basics. Strange isn't it, people claim standards in schools are slipping but I know this is taught today, or at least was until I recently retired. Grow up Brian. Your attempt to stir things up in order to bandy about insults fails again. You have failed again because the discussion was that things should not be named after people and you slipped on a banana skin with your own mention of the Coulomb. PS 10^18? ISTR 10^19 |
#14
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"gareth" wrote in news:n7nmq8$irn$1@dont-
email.me: "Jim GM4DHJ ..." wrote in message ... but hertz means NOTHING whereas c/s describes cycles per second ...much better ... Whereas Ampere means ions per second A meaningless comparison, since ions don't all carry the same amount of charge. |
#15
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"Brian Reay" wrote in message
... You seem to be confusing two methods. One based on charge per second another based on force between conductors. That is the danger of trying to impress by using Google. Grow up, Brian. |
#16
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"Brian Reay" wrote in message
... Or dear, one of your typical responses when corrected. No wonder you have failed to improve your knowledge if you always react this way. Grow up, Brian. |
#17
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Brian Reay wrote:
gareth wrote: "Spike" wrote in message ... On 20/01/2016 10:43, Brian Reay wrote: gareth wrote: "Jim GM4DHJ ..." wrote but hertz means NOTHING whereas c/s describes cycles per second ...much better ... Whereas Ampere means ions per second Charge (Coulombs) per second. One Amp is one Coulomb per second. Since the Ampere and the second are fundamental units in the SI system, and the Coulomb is a unit derived from them and therefore is not a fundamental unit, then one should say that 1 Coulomb = 1 Ampere-second Read up on 'SI fundamental units'. (The SI is but one in a number of arbitrary systems of units) ISTR that the SI system is based upon things that can actually be measured experimentally and not upon some theoretical bases that cannot be measured. But how does one fashion a pair of infinitely long parallel wires in order to be able to measure an ampere has yet to be revealed :-) You seem to be confusing two methods. One based on charge per second another based on force between conductors. That is the danger of trying to impress by using Google. On this occcasion you are mistaken. Currently the Ampere is defined in terms of magnetic force between infinite parallel conductors, and units of charge are defived from it. This of course has no effect on the usefullness of given practical methods of measuring current. -- Roger Hayter |
#18
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"Brian Reay" wrote in message
... The Roger Hayter wrote: Brian Reay wrote: gareth wrote: "Spike" wrote in message ... On 20/01/2016 10:43, Brian Reay wrote: gareth wrote: "Jim GM4DHJ ..." wrote but hertz means NOTHING whereas c/s describes cycles per second ...much better ... Whereas Ampere means ions per second Charge (Coulombs) per second. One Amp is one Coulomb per second. Since the Ampere and the second are fundamental units in the SI system, and the Coulomb is a unit derived from them and therefore is not a fundamental unit, then one should say that 1 Coulomb = 1 Ampere-second Read up on 'SI fundamental units'. (The SI is but one in a number of arbitrary systems of units) ISTR that the SI system is based upon things that can actually be measured experimentally and not upon some theoretical bases that cannot be measured. But how does one fashion a pair of infinitely long parallel wires in order to be able to measure an ampere has yet to be revealed :-) You seem to be confusing two methods. One based on charge per second another based on force between conductors. That is the danger of trying to impress by using Google. On this occcasion you are mistaken. Currently the Ampere is defined in terms of magnetic force between infinite parallel conductors, and units of charge are defived from it. This of course has no effect on the usefullness of given practical methods of measuring current. You have jumped in with both feet. I suggest you repeat YOUR Google research and read what I posted. You should find nothing I have posted conflicts with your post. So, despite your unnecessary and rather childish jibe it is YOU who googled, for I spoke off the cuff without reference to anything else. You've been caught with your trousers down, OM. |
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