(please skip straight to the question if you don't want to read the setup) Backstory: I'm playing with a motor, both as a motor and a generator. It's from a treadmill, 90 V, 6 Amp. Observation: I hook the motor up to a power supply. Apparently it's an independent power supply, because I have little control over the current (it seems to me like I can set the maximum current, but in order to keep the voltage constant, the current changes). If I put resistance on the rotor, the current goes up. To accelerate the rotor, the current goes up (like when you first turn it on, to overcome the inertia. I've since refreshed myself on the dependencies between angular velocity, torque, current, and voltage. Question: I rigged the motor up as a generator (it worked, so it must not be induction) and power a small light bulb, using bicycle pedals, but it's too easy to spin the rotor, so I'm all velocity and no torque. If I put a bigger load than a light on the motor, will it put back resistance on the rotor so that I have to apply more torque to get it going? And, as my intuition suggests, will this supply more current (i.e. my power will more in torque than in angular velocity)?