Homopolar torqueless gear generator.

[broli]

I don't know why I didn't share this concept before but here it is now. The idea and built should be straightforward. I attached a theoretical but graphical point of view and a 3D rendition of a potential setup. However I have a hunch that the voltage would not be 2x that of a standard setup, it's probably lower, but you still would get no back torque.

[Low-Q]

Nice

Btw.: Do you mean no back torque or no back EMF?

Vidar

[broli]

Nice

Btw.: Do you mean no back torque or no back EMF?

Vidar

This is a generator, so no back torque.

Also the magnets don't have to be glued on, they can be left stationary, which may make things easier if you want really high rpms or want to use an electromagnet.

[exnihiloest]

This is a generator, so no back torque.

Also the magnets don't have to be glued on, they can be left stationary, which may make things easier if you want really high rpms or want to use an electromagnet.

The contact between the 2 disks is always at rest for the observer. It is the same as 2 separated Faraday disks with a fix common sliding contact at the points where they touched one another. So there is a back torque applying to each disk, as if each one was a solitary Faraday disc.

[broli]

The contact between the 2 disks is always at rest for the observer. It is the same as 2 separated Faraday disks with a fix common sliding contact at the points where they touched one another. So there is a back torque applying to each disk, as if each one was a solitary Faraday disc.

Nope, not if the polarity is as shown. The left disc is torqued by the right magnet and left magnet equally and so is the right disc. If it wasn't then the magnets would spin and we would already have free energy from a spinning magnet without any need to spin the conductor. It's called newton's third law.