Hi,
I've read tutorial on homopolar generator modeling in COMSOL where it shows current flow. https://www.comsol.com/model/download/452611/models.acdc.homopolar_generator.pdf
I'd like to know is it possible monitor celectric harge distribuion in rotating magnet when brushes are not connected (or with high resistance) and what module and result chart would need to be used?
Would the same electric charge distribution be possible to monitor in case a toroidal solenoid is wrapped arround a circular magnet with central hole and spun in the magnetic field of the magnet?