Homopolar torqueless gear generator.

[Liberty]

You must first see why the voltage is created, the rest is just standard ohm's law.

Would you care to expound on why the voltage is created?

[broli]

In a simple homopolar motor you don't even need the Lorentz force. If you take a disc and a magnet the best thing to do is immediately reduce your magnet to its surface current. A simple disc magnet can be represented by a single current loop, seen as the red current loop in the drawing.

Then if you spin the disc, the electrons will spin with it as shown by the orange circle. Now we know that current going in same direction attract and vice versa for opposite direction, thus the spinning electrons have a radial force applied on them. This radial force translate into a voltage in an ohmic circuit. In reality the spinning disc would make many concentric current loops, but for simplicity I just drew one. And that's all there is. No mysterious action at a distance or needing a middle man Mr. Field.

If you want to analyze more complex magnetic setups you need to use ampere's current formulation.

[gravityblock]

http://www.df.lth.se/~snorkelf/LongitudinalMSc.pdf

Excellent publication.

GB

[exnihiloest]

I don't know why I bothered responding. It's not like you have a reputation of constructiveness and open mindedness.

This second personal attack proves that you are unable to reply about scientifical objections.

For your to lecture me on homopolar theory using wikipedia is an insult. So do us both a favor and just ignore this thread.

You asked me "Do you actually know what causes the back torque in a homopolar generator?"
I replied. And now you are accusing me to insult you because I answered your question!

What I explained is not from wikipedia. It is what the engineers code of practice says, what science says and what I observed myself when I was working with Faraday's disks.
Your double disks is a nonsense due to your ignorance of "fundamentals" (that you reproached me!) and your denial of scientifical knowledge. Sorry if you consider that science insults you because it dismisses your ideas. It is your problem, not mine.
I guess you know you are wrong but you prefer to swagger with simplistic technical drawings. Instead of wasting our time, why don't you waste yours by building yourself your device? And please, let us know only when it will sustain itself.

[broli]

This second personal attack proves that you are unable to reply about scientifical objections.

You asked me "Do you actually know what causes the back torque in a homopolar generator?"
I replied. And now you are accusing me to insult you because I answered your question!

What I explained is not from wikipedia. It is what the engineers code of practice says, what science says and what I observed myself when I was working with Faraday's disks.
Your double disks is a nonsense due to your ignorance of "fundamentals" (that you reproached me!) and your denial of scientifical knowledge. Sorry if you consider that science insults you because it dismisses your ideas. It is your problem, not mine.
I guess you know you are wrong but you prefer to swagger with simplistic technical drawings. Instead of wasting our time, why don't you waste yours by building yourself your device? And please, let us know only when it will sustain itself.

What part of "ignore this thread" didn't you understand.