Lorentz force "space propulsion" ?

>Is this one of those things that are doable but extremely unpractical like photon thrusters?

yup

>>8979213
Even if a sufficient superconductor could be made so you wouldn't have the trouble of dissipating all that heat from the filament?

Or is the interaction simply so small, exactly as with photon thrusters? Wouldn't the force increase with the voltage? High voltage is not really that hard to do is it?

I don't know much about this, but I just want to know why its unpractical help me out anon pls.

>>8979202
I think some satellites, particularly cubesats, already use this.

Something similar to OP's idea was suggested in Charles Stross' book, "accelerando", where a post-singularity nation/state/corporation/kingdom exclusively owned and inhabited by this teenage girl with a cybernetic superbrain claims one of Jupiter's moons and lays a superconducting loop of wire between its two poles to draw vast amounts of energy used to power an array of lasers which propel a lightsail spaceship in a mission to alpha centauri.

It's a weird book, but weird in all the best ways.