I've made a homopolar generator using Al disk, its giving me a output voltage of around 0.1V but shockingly der is no current !! a checked the resistance of the disk its very low as required, i checked for every other problem like : improper contact , smoothness of the disk , symmetry of the field , speed , proximity of the field , insulation of the rotor shaft with the disk , using a thick disk ( around 5 mm ) etc....but there is no current !! can anybody tell me what might have gone wrong....?? homopolar generator is supposed to generate high current at low voltages i want to verify it, can anybody suggest any other way of producing very high current it doesnt matted at what voltage ii just want high current.