Weird battery voltage readings

[babock]

Originally Posted by bubbles

When did OHMS law change from E=IR.

As an EE for over 35 years, I never used E=IR.

[Larry-NC]

Originally Posted by babock

As an EE for over 35 years, I never used E=IR.

As an EE for over 45 years I never used E=IR.

[Scrapper]

Originally Posted by bubbles

Quote:
Originally Posted by Larry-NC
per Ohm's law, V=I*R.


When did OHMS law change from E=IR.

Since forever. Both equations are part of OHMS law. Buy a copy of UGLY'S Electrical References, OHM's Law formulas with examples on pages 1 thru 12, best handyman reference made. I know a lot of certified electricians carry a copy.

[TitanMike]

Originally Posted by babock

As an EE for over 35 years, I never used E=IR.

Last time I saw E=IR was in a college electronics class circa 1962

[bubbles]

Originally Posted by TitanMike

Last time I saw E=IR was in a college electronics class circa 1962

Yep, 1962 was the year the formula was drummed into my head. Guess E and V sound alike when spoken so no one ever questioned it; although it wouldn't be wrong. Oh well.

[pgandw]

I have used both V and E interchangeably throughout my Electrical Engineering career and education. The physics and scientific side use E (electromotive force) because V is "velocity". Very similar to the way mathematicians use i for the square root of -1, while EEs use j to avoid confusion with current (i).

Fred W