that looks like the elevation actuator out of a treadmill, the ones i have been into are shaded pole motors, if the rpm is in the 1500 range that would be about what a shaded pole 1750 rpm motor would run. Shaded pole motors are frequency based speed control but will also work of the voltage type control due to the fact that slippage is so high and they are impedance limited on current. they are not continues and would not work for CNC application at all. I have used them to position the the head on a mill drill as I have some disabilities that prevent those kind of man handling problems. they will work well for setting an initial position.
When I taught OHMS law I did it a little different I used E=I x R x efficiency of the circuit or power factor. On DC it is 100% so most instructors on DC ohms law leave it out but until the light comes on it drives people nuts on any kind of reactive circuit because what you calculate and what you measure doesn't match simple ohms law. Many of the formulas used in engineering leave out anything that is 100% or is the base unit reference and assume you know. Leaving out core information makes it hard when your are learning something through your own study and no one is around to bounce questions off of.........
Ohms law is the basic law of dynamic or moving mass E or EMF, Electromotive force is the pressure difference portion, I measured in amps is the mass-time portion as it is measured in units of electrons moving per second similar to gallons(lbs) per hour. Resistance is opposition to flow. Efficiencey is the time difference between the peak pressures and peak mass movements. there is only one law structure for all moving masses Ohms law uses the weight of an electron as its mass unit the others use weights that we are more used to thinking about as weighting something. For example if you took the weight of the electrons that run through the motor per minute x the voltage x the efficiency it would = the lbs of water per minute x the pressure difference + the heat generated by the windings and bearings etc. the motor turns because iti is easier to turn then move the weight of the electrons in the rotor.
When I taught OHMS law I did it a little different I used E=I x R x efficiency of the circuit or power factor. On DC it is 100% so most instructors on DC ohms law leave it out but until the light comes on it drives people nuts on any kind of reactive circuit because what you calculate and what you measure doesn't match simple ohms law. Many of the formulas used in engineering leave out anything that is 100% or is the base unit reference and assume you know. Leaving out core information makes it hard when your are learning something through your own study and no one is around to bounce questions off of.........
Ohms law is the basic law of dynamic or moving mass E or EMF, Electromotive force is the pressure difference portion, I measured in amps is the mass-time portion as it is measured in units of electrons moving per second similar to gallons(lbs) per hour. Resistance is opposition to flow. Efficiencey is the time difference between the peak pressures and peak mass movements. there is only one law structure for all moving masses Ohms law uses the weight of an electron as its mass unit the others use weights that we are more used to thinking about as weighting something. For example if you took the weight of the electrons that run through the motor per minute x the voltage x the efficiency it would = the lbs of water per minute x the pressure difference + the heat generated by the windings and bearings etc. the motor turns because iti is easier to turn then move the weight of the electrons in the rotor.