Evening Arnold,
>> At 04:44 PM 6/20/2007, you wrote:
http://www.grc.nasa.gov/WWW/K-12/Sample_Projects/Ohms_Law/ohmslaw.html
A good link and the first step to understanding many things.
Who did it first and who originated Ohms Law?
His name was Georg Simon Ohm and it happened in the early 1800's. He must
have been right or someone would have changed it by now.
It applies to simple circuits and complex ones as well. Maybe some of the
people that hope to understand some of the theory of CS generators will
profit from the link and more knowledge of Ohms Law.
It always amazed me that he boiled down his formula to the height of
simplicity.
A 1 to 1 to 1 Ratio. May people play with Ohms law for years and miss
that 1, 1, 1, ratio of Voltage to Resistance to current.
Consider this, One Volt applied to one ohm resistance ( the load ) will
force one
Amp through the load. We wish everything in live was so simple.
1 Volt applied to 1 ohm resistance = 1 Amp current
Likewise, 12 Volt applied to 1 ohm = 12 Amps
12 Volt applied to 120 ohms = .1 Amps
12 Volt applied to 1200 ohms = .01 amps
I show these ratios to help one understand the 1,1,1 ratio.
One should understand these simple examples before tackling
mili Volt, mili Amps, and large resistances which result in the micro values.
An example or two with these micro values.
12 volts applied to 12000 ohms = .001 amps
Still the 1,1,1 ratio.
Generally this applies only to DC volts, not special AC circuits that have
inductance and capacitance. Master the simple ones before worrying about
all the other stuff.
You may never need that anyway.
Use the link above to gain a working knowledge. You can find 1000's of
other web pages about Ohms Law.
Wayne
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