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A) 0.004Ohms x 200A = 11.8V

B) 11.8V - (0.002Ohms + 0.002Ohms) x 200A = 11V

C) 11V x 200A = 2200W

D) 2200W x 0.7 = 1540W

Nice work!

I know for question A you meant 12.6V - (0.004 ohms x 200A). :)

Damn, I slipped up on that. I was trying to show my work so others could benefit. Whoops! Since you already corrected it, I won't go back and edit it.

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I hope people watch these video's, eventhough it's basic knowledge if you have ever studied anything related to electricity. (there are just too many people who don't understand the basics)

Good job Tony, you would be a good professor.

Edited by kirill007

Thinking is the root of all problems...

You ALWAYS get what you pay for.

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I hope people watch these video's, eventhough it's basic knowledge if you have ever studied anything related to electricity. (there are just too many people who don't understand the basics)

Good job Tony, you would be a good professor.

IIRC he was a professor at the University of Arkansas.

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Krakin's Home Dipole Project

http://www.stevemeadedesigns.com/board/topic/186153-krakins-dipole-project-new-reciever-in-rockford-science/#entry2772370

Krakin, are you some sort of mad scientist?

I would have replied earlier, but I was measuring the output of my amp with a yardstick . . .

What you hear is not the air pressure variation in itself

but what has drawn your attention

in the two streams of superimposed air pressure variations at your eardrums

An acoustic event has dimensions of Time, Tone, Loudness and Space

Everyone learns to render the 3-dimensional localization of sound based on the individual shape of their ears,

thus no formula can achieve a definite effect for every listener.

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Hmm.... Videos 1, 2 and 3 were DC voltage videos, Video 4 is the intro to AC. Video 4 has very little views! wth? Shouldn't the AC videos be just as relavent to what we do in car audio?? If you don't know, the cable from your battery to the amplifier B+ terminal is where the DC voltage stops in audio. It is all AC voltage from that point until it hits your ear drums. So if you haven't watched Video 4, you should before watching Video 5. That being said, Video 5, RMS and Clipping has been posted! http://damoreengineering.com/freeeducation.html

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Great video Tony :good:

Love that you went in and explained specifically what RMS is rather then just throwing up a general formula, especially comparing RMS to AVG.

If people are serious about this hobby then they should be interested in learning how it works technically.

The part on the Vrms of the clipped waveform should open some eyes, that's for sure.

I know its important to keep content in its respective section of the forum, but to increase the views and make sure as many people see the videos as possible, it may not be a bad idea to pin them in the Electrical (and maybe Amplifier) sections as well. :shrug:

When you get to it, the Subwoofer Section could use a pinned video on impedance too.

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-The word "subsonic" to describe low frequency audio is TOTALLY incorrect

Hmmmm.

Well I guess it's back to the drawing board on my user name...

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-The word "subsonic" to describe low frequency audio is TOTALLY incorrect

Hmmmm.

Well I guess it's back to the drawing board on my user name...

lol yeah somehow "subsonic" was used somewhere in audio and just stuck. Kind of like "Watts RMS", that also isn't correct. We are just trying to educate and keep our sport legit. I'm sure I'll get to all of this stuff in future videos, because once we are done learning about basic electricity we are going to dive in to audio.

But for now:

Supersonic = faster than 768 miles per hour

Subsonic = slower than 768 miles per hour

Ultrasonic = Higher than 20,000 Hz

Infrasonic = Lower than 20 Hz

-Tony

Edited by TonyD'Amore
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