This chart was published as a public service announcement by the Long Island CW Club. Their next online CW class for kids starts on April 2, 2o20. Visit their website for more details.
This chart was published as a public service announcement by the Long Island CW Club. Their next online CW class for kids starts on April 2, 2o20. Visit their website for more details.
Social distancing is like grounding, missing just one conductor risks the whole shack
Why is “Hams obey Ohm’s law” so popular?
Why not “Hams Break Ohm’s law”?
Is it traditional, from the pre-transistor days?
I have always considered Ham Radio decidedly non-Ohmic?
The limits of Ohms law is a fascinating and too often ignored topic.
I have used the term “Ohm’s Rule” to reinforce Ohms law is not a law of nature.
Thank you for the wonderful site
73 W7GNU Scott
Hi, Scott. I don’t know about you, but I’ve never seen anyone successfully break Ohm’s Law. :)
Hello Dan,
My thinking is, it would take a radio with exclusively linear components to not break Ohm’s law, while possible, not common.
Some non-Ohmic components include bulb filaments, diodes, transistors, thermistors, crystal rectifiers, even vacuum tubes!
I would truly appreciate another way to look at it.
Thank you, 73
Scott W7GNU
There’s really no such thing as “non-Ohmic.” At any instant in time, V = I x R.
A component can certainly have a non-linear V/I curve, but that just means that the R of that component changes depending on the voltage or the current.