Recent content by sleeppotato

Do you know of a place where I can reference that equation for RPM = motorconstant * supply voltage? I can't seem to find it anywhere outside of wikipedia.. Thank you so much for the help!

I have a formula similar to that, because I had seen that before, but couldn't find any references. I have back emf = motor constant * motor speed I can see this is related but I can't quite link it. And the motor constant is reducing for more turns because, of a greater back emf? Oh! I...

Ok, one final question because I forgot to mention it, for coils with more turns, e.g when comparing one with 5 turns to one with 7, the 7 turns coil, in our findings has less gradient when increasing voltage, when plotting speed, so as the voltage increases for both, they both increase in speed...

the load was just the friction and any energy loss in the motor from heat I'd say. So to explain why increasing number of turns reduces the maximum speed, I just say that the back-emf is achieved at a lower speed? My teacher said that I should be referring to a torque vs speed graph, But I'm...

In my case however, we didn't change the load on the motor, the only thing we were doing was increasing the number of coils, and expecting a linear relationship between the speed of the motor and the number of turns, decreasing speed as turns increase. So This increases torque, but from my...

So the Torque is always there, but it's just being negated by the back EMF? But in the experimentation, we're expecting the motor speed to decrease as we increase coil size, despite having more torque, is this just due to more windings causing more back EMF and then the extra weight is the...

Ok, so I'm doing an experimental write up for an experiment on adjusting voltage on the speed of a simple DC motor, and changing the number of coils. I thought that I understood what I was saying but I've recently become a little confused with the concepts of torque vs speed specifically when...