Hello all, I have to design a hand crank generator to produce power for some downstream application. The amount of power is on the order of that needed for anything between a heavy-duty flashlight to one of those desktop mini-fridges that hold one soda can. Thing is, I'm drawing a blank on the physics of an electric motor. I need to know what variables power generation depends on, i.e., number of coils, speed of rotation, torque of rotation etc. Also, I was planning on connecting the hand crank to an electric motor type device to produce power, but does anyone have any other suggestions specifically for the hand-cranking mechanism? Can anyone help me out please? Thanks in advance.