Ohm's law is not applicable on resistors in DC regime only, but on capacitors and inductors in AC regime as well. This makes Ohm's law formula one of the most practical and popular formulas in physics and engineering.
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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
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| San Tan Valley, AZ 85142 Skype: skypeanalog | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
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.
-- Tim Wescott Wescott Design Services http://www.wescottdesign.com
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.
-- Grizzly H.
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.
-- John Larkin Highland Technology, Inc picosecond timing precision measurement jlarkin att highlandtechnology dott com http://www.highlandtechnology.com
Forums are something else.
I can't stand to watch that squeaky-voiced EEV guy.
-- John Larkin Highland Technology, Inc picosecond timing precision measurement jlarkin att highlandtechnology dott com http://www.highlandtechnology.com
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
-- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics 160 North State Road #203 Briarcliff Manor NY 10510 hobbs at electrooptical dot net http://electrooptical.net
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...
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