What a revolting story

SteamWake · 10-26-10, 12:11 PM

Ohm's Law

I = E / R

Its been E as long as I can remeber. E is for electromotive force.

http://www.google.com/images?hl=en&q...w=1259&bih=850

But I see evidently its been changed to V to make it 'easy' I guess since no one really understands EMF anymore.

Blood_splat · 10-26-10, 12:33 PM

PIE

DarkFish · 10-26-10, 01:09 PM

Quote:

Originally Posted by SteamWake

Ohm's Law

I = E / R

Its been E as long as I can remeber. E is for electromotive force.

http://www.google.com/images?hl=en&q...w=1259&bih=850

But I see evidently its been changed to V to make it 'easy' I guess since no one really understands EMF anymore.

yep I know Ohms law as V=IR.
Wikipedia has it with V as well, and V is the SI-symbol for Voltage.

It's been V for as long as *I* can remember, but that's just little over 1 year at university and 3 or 4 years at high school.

tater · 10-26-10, 01:15 PM

It was V=IR as an astrophysics major back in the 80s, too, least for circuits.

For fields, we'd use E, though.

Penguin · 10-26-10, 03:37 PM

To complete the confusion: In Germany we use an U instead of a V, maybe to avoid confusion with voltage.
So my bid would be U=I*R

Platapus · 10-26-10, 05:23 PM

I once made an 8 inch screwdriver into a 2 inch screwdriver in about a millisecond because I made the fundamental mistake you can make with electricity.

I asked someone to kill the circuit.

Very bad mistake and I am lucky to be alive.

DarkFish · 10-26-10, 05:26 PM

Quote:

Originally Posted by Penguin

To complete the confusion: In Germany we use an U instead of a V, maybe to avoid confusion with voltage.
So my bid would be U=I*R

In high school we did so as well. But on the uni we only use V.

Penguin · 10-27-10, 07:18 AM

Quote:

Originally Posted by DarkFish

In high school we did so as well. But on the uni we only use V.

hmm, I checked out my documents from my physics class at my uni from 2006 and indeed, we use U. The prof who wrote the stuff, teaches also in some other universities, so I assume U is the norm here. V is only used for volume - in mechanics.
Tater is right about E for electric fields btw.

10-26-10, 12:11 PM	#1
SteamWake Rear Admiral Join Date: Mar 2005 Posts: 13,224 Downloads: 5 Uploads: 0	Ohm's Law I = E / R Its been E as long as I can remeber. E is for electromotive force. http://www.google.com/images?hl=en&q...w=1259&bih=850 But I see evidently its been changed to V to make it 'easy' I guess since no one really understands EMF anymore. __________________ Follow the progress of Mr. Mulligan : http://www.subsim.com/radioroom/showthread.php?t=147648

10-26-10, 05:23 PM	#6
Platapus Fleet Admiral Join Date: Oct 2006 Posts: 19,391 Downloads: 63 Uploads: 0	I once made an 8 inch screwdriver into a 2 inch screwdriver in about a millisecond because I made the fundamental mistake you can make with electricity. I asked someone to kill the circuit. Very bad mistake and I am lucky to be alive. __________________ abusus non tollit usum - A right should NOT be withheld from people on the basis that some tend to abuse that right.

10-26-10, 12:33 PM	#2
Blood_splat Samurai Navy Join Date: Aug 2006 Location: Beneath the waves Posts: 568 Downloads: 20 Uploads: 0	PIE

10-26-10, 01:15 PM	#4
tater Navy Seal Join Date: Mar 2007 Location: New Mexico, USA Posts: 9,023 Downloads: 8 Uploads: 2	It was V=IR as an astrophysics major back in the 80s, too, least for circuits. For fields, we'd use E, though.

10-26-10, 03:37 PM	#5
Penguin Ocean Warrior Join Date: Mar 2010 Location: Rheinische Republik Posts: 3,322 Downloads: 92 Uploads: 0	To complete the confusion: In Germany we use an U instead of a V, maybe to avoid confusion with voltage. So my bid would be U=I*R