SOme questions about rpm and Torque(I think?) Since in most AC and DC are similar in current needs, is the torque equal. I may have the wrong term, but will a DC motor of the same amperage pull the same apparatus as an AC motor will? If not, how can I determine an equal sized DC motor? If I have an DC motor that runs 3000 RPM at 7 amps; I turn the power down to the point where the motor is running at 1750 RPM ; Will it take less amps to run or simply use the same at a lower RPM. If you could please include any formula's so I may work my way thru this. I understand Ohm's Law to a point, but not sure if it applies here and if it does, then where does everything fit to the formula? Many thanks for any info here. When events look their worst, there is always a light at the end!