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RE: OT - A/C Electrical systems

 
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RE: OT - A/C Electrical systems - 5/8/2012 12:43:56 AM   
pompack


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E stood for EMF which was electromotive force (measured in volts). The term goes back to the 1830's or thereabouts. Since it was measured in volts, eventually common usuage changed it to voltage.


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Post #: 31
RE: OT - A/C Electrical systems - 5/8/2012 12:46:26 AM   
witpqs


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quote:

ORIGINAL: pompack

E stood for EMF which was electromotive force (measured in volts). The term goes back to the 1830's or thereabouts. Since it was measured in volts, eventually common usuage changed it to voltage.


That rings a bell! I'm sure a Jesuit told me that once upon a time.

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Post #: 32
RE: OT - A/C Electrical systems - 5/8/2012 3:46:31 AM   
USS America


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From 1988 until I left in 1997 (and I'm sure after that time) the USN taught and referred to voltage in formulas as E. E=I*R.

Besides, you can't have my very favorite formula in all of electronics if you use V instead of E. I love to eat P=I*E.

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Post #: 33
RE: OT - A/C Electrical systems - 5/8/2012 11:24:06 AM   
Reg


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Joined: 5/26/2000
From: Victoria, Australia
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quote:

ORIGINAL: pws1225

The higher the voltage, the lower the amperage (and associated wire size) to deliver the same amount of power.


Exactly. Ask anyone who has converted their pre-1966 VW Beetle from 6 Volts to 12 Volts. Everything just works better....

http://www.nls.net/mp/volks/htm/6v_12v.htm


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Post #: 34
RE: OT - A/C Electrical systems - 5/8/2012 7:24:11 PM   
JWE

 

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quote:

ORIGINAL: steamboateng
+1 JWE. But from you it may be another one of your silly cons!

Sir! That is a canard! The witnesses failed to testify and all the charges were dropped.

[ed] well, ok, there was that one time in Bologna, but that was Berlusconi getting pissed because I figured out how to ... oh, well, that's not imprortant. Ok, so I haven't been convicted anywhere except Italy.

< Message edited by JWE -- 5/8/2012 7:34:26 PM >


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Post #: 35
RE: OT - A/C Electrical systems - 5/8/2012 9:20:01 PM   
steamboateng


Posts: 354
Joined: 3/21/2010
From: somewhere in Massachusetts
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The worst I'd admit to, is using a terribly bad pun in a forum.

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Post #: 36
RE: OT - A/C Electrical systems - 5/10/2012 5:56:08 AM   
Capt Hornblower


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Joined: 10/29/2010
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I don't know if anyone's still looking at this thread, but the E in E=IR stands for emf (which is electromotive force). E is the symbol most commonly used in physics because emf is understood to apply to all situations where an electric field exists, whether from the dynamic flow of electrons or from the static separation of electric charge of any sort. (V is used especially by electricians, who don't need to be formally trained in physics.)

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