Ohm's law

N.S. SHERLOCK

I'm not sure how ohms's law applies to inductors and capacitors, (I refuse to click on his link). Unless it's the resistive part of the device... that seems a bit to complex for Mr. Chung.

George H.

S domain... But you know that. Looks like click bait

Chung is a troll who fathoms himself an electronics expert. Killfile him. ...Jim Thompson

That's one of my pet peeves: "Ohm's law for AC". Ohm's law and the linearity of electromagnetism in a vacuum may be similar looking from a circuits POV, but they arise from completely different physics.

Cheers

Phil Hobbs

I guess I don't know what "Ohm's law for AC" means. This,?

Which I wouldn't call ohm's law.

George H.

The guy's just trolling for traffic on his website, which is poorly written and inaccurate. When first came out with these some of us tried to correct his science, engineering, grammar and spelling -- we got no traction.

I see what you did there :-)

Mark

Impedance with no phase angle (no imaginary part with jomega dependence) = resistance. That condition happens at DC or at resonance. If yer treating the complex number arithmetic right, including the jw(reactance) dependence, the relationships between AC voltage, current and impedance follow Ohm's law.

The world need a really good electronics web site. EE Times, EEweb, etc are various degrees of awful. I may have to do it.

Too many pretend Physics people and not enough engineers, that's the trouble.

Complex Numbers of course, first year elec engineering. If you don't know that there's something wrong with your knob.

Mr.LARKIN,

Try EEV Blog Forums, Project Designs and Technical Stuff, and Test Instruments Sections.

Tends to be lightly moderated and farcial fisiks / alien technology posts don't survive long.

Steve

One other plus for EEV Blog. You can have attachments!

Steve

No, too many journalism majors.

Forums are something else.

I can't stand to watch that squeaky-voiced EEV guy.

Right, that's the peeve. Ohm's law comes out of some very deep physics about quantum collisions, whereas the linearity of coils and capacitors comes from the linearity of Maxwell's equations and the constitutive relations of the dielectric.

Cheers

Phil Hobbs

On Thu, 12 Nov 2015 12:08:33 -0500, mixed nuts Gave us:

And then... there are all those nasty little parasitic effects too.

On Thu, 12 Nov 2015 09:47:50 -0800, John Larkin Gave us:

See if Wolfram Alpha has what you are thinking of...