Re: [EVGRAY] Voltage and Current | Basic Concepts Of Electricity | Electronics Textbook

Body

It just seems strange to me that there wasn't a word mentioned about it in
the article not even in the math ? If it's not in the math how do you
calculate for it in the power formula ? Electro magnets are a cousin of
transformers and other wire iron devices they have power formula requiring
voltage to get it right . just seemed strange . wattage can be maintained
by shifting the current voltage ratio but with out it included in the math
?well you can't express an outcome . I just ran into some e!electro magnets
with very thin wires and very hi voltages that had many more windings
giving them a lot of fleld strength . and I thought the effect might
transfer over to toroidal cores as a way to reduce the power needed to turn
off there magnetic attraction  .with more windings more field strength an
less power needed .  thanks norm .
On Sep 24, 2018 9:07 AM, "Norman Wootan [email protected] [EVGRAY]" <
[email protected]> wrote:

>
>
> https://www.allaboutcircuits.com/textbook/direct-current/chpt-1/voltage-current/
>
>
> Sent from Yahoo Mail on Android
> <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature>
>
> Since some folks don't understand that for a current to flow in a circuit,
> you have to have a potential ( Volts).   Back to fundamentals!
> 
>