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post #1 of 18 (permalink) Old 10-08-2019, 02:18 AM Thread Starter
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Default Ohms law

An amusing way to show Ohms law, well not exactly.


For anyone not familiar with Ohms law:


I=V/R......R=V/I......W=V x I......V=I x R.....Where I=amps..V=volts..R=Ohms..W=Watts

Edit.

I just came across this disc which is far more comprehensive than my explanation.
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post #2 of 18 (permalink) Old 10-08-2019, 09:08 AM
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Harry,

When teaching we always listed Voltage as E=energy. But it is all the same no matter which way it is taught. We had a little saying to go along with this (I am going to find Voltage).
When teaching, we as instructors had to go through the complete electrical program provided by General Motors. So everything had to match their specifications and ideas. But, no matter how you do it Ohm's Law is Ohm's Law. Oh and by the way you stated it, was very accurate and easy to understand. I for one thank you for the review. It never hurts to look at once in a while
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post #3 of 18 (permalink) Old 10-08-2019, 09:47 AM
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I had an electrical engineering teacher who used an analogy for resistance as Aholes at the mall at Christmas time. LOL I still remember I guess it worked.
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post #4 of 18 (permalink) Old 10-08-2019, 09:48 AM
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Quote:
Originally Posted by harrysin View Post
An amusing way to show Ohms

For anyone not familiar with Ohms law:


I=V/R......R=V/I......W=V x I......V=I x R.....Where I=amps..V=volts..R=Ohms..W=Watts

Edit.

I just came across this disc which is far more comprehensive than my explanation.
It still escapes me. I come from the old school that says if you can't fix it with a hammer.. it's an electrical problem.

I seem to have a mental block on things electrical. If you can't see it how can you fix it??
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post #5 of 18 (permalink) Old 10-08-2019, 09:49 AM
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I love that cartoon, because I often use hydraulic flow to help people visualize electrical concepts.

Professor Hennings always used to say "John D. Ohm lived and died to give us this law" when teaching us in basic electricity to emphasize the importance of this simple law.

I didn't realize for a few weeks that Mr. Ohm's name was actually George, but his antics are still as memorable today as they were 30+ years ago.

One of my favorite shirts says "V = IR... It's the law" and I get questions or comments on it all the time from strangers
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post #6 of 18 (permalink) Old 10-08-2019, 10:06 AM
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Quote:
Originally Posted by GerryAttrick View Post
It still escapes me. I come from the old school that says if you can't fix it with a hammer.. it's an electrical problem.

I seem to have a mental block on things electrical. If you can't see it how can you fix it??
If you put your fingers in the wrong place, you can definitely FEEL it!
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post #7 of 18 (permalink) Old 10-08-2019, 10:20 AM
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Quote:
Originally Posted by GerryAttrick View Post
It still escapes me. I come from the old school that says if you can't fix it with a hammer.. it's an electrical problem.

I seem to have a mental block on things electrical. If you can't see it how can you fix it??
Either that or you need a bigger hammer. Mechanical stuff, no biggie. Electrical stuff, might as well be magic, because I don't understand magic either. Been this way since 9th grade shop. I can change a bulb, solder a wire, and that's about it.
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post #8 of 18 (permalink) Old 10-08-2019, 01:08 PM
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Since March I've switched my hobbies from film photography to electronics. Arduino etc.
I've found it to be much cheaper than either the photography or woodworking.

I like the disc, very helpful.
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post #9 of 18 (permalink) Old 10-08-2019, 03:09 PM
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Quote:
Originally Posted by rwl7532 View Post
Since March I've switched my hobbies from film photography to electronics. Arduino etc.
I've found it to be much cheaper than either the photography or woodworking.

I like the disc, very helpful.


Yea "Light is Free - Capturing it is not".

I'm leaning in the photography direction now, but alternate frequently between electrical and electronics, woodworking, metal working, and photography. I could probably have a lavish retirement if I didn't keep spending money on my toys.

Charley
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post #10 of 18 (permalink) Old 10-08-2019, 03:29 PM
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I have Lived, breathed and died Ohms lay for 11 years in the Military working on and repairing B-52 Radar Simulators and from 1981 to 2004 in the high tech industry, Even though I have been retired for a few years, I still use it almost every day.

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