Machines | How do Universal Motors work ?

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1. pls make video for working of repulsion motor
2. hi, I need a help to understand how work this motor. When you used the left rule hand, do you indicate the real direction of current? Tks for your help :)
3. universal motor works a.c. & D.C. supply
4. Excellent information.
5. So, universal motor cannot run in opposite rotational direction?
6. Great tutorial!
   I have a universal motor rotary tool running on power cord AC.
   How can i rewire it to run on DC?
7. I tried using the transvestite over the forward converter but it burnt the 3GPP transistors. Does anybody know where I can find a jar of pickles for my pulse code Modulator?
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9. I have a 115 volt universal running on 12 vdc at 10 amps
10. dayıoğlu türkçesi yokmu ??
11. The complex explained simple. Excelent video!!
12. so, while operating in dc, if i swap the polarity at the brushes the rotor will rotate in the opposite direction but what about while in ac? does it work the same way?
13. very thanks
14. Might this have anything to do with why my vacuum cleaner motor has loads of sparks coming out, with a burning smell?
    And will replacing the brushes help?
15. Universal motors are pretty inefficient. But it's good to know how they work. Thanks!
16. Should be the right hand rule. That hand works for everything.
17. Thanks a lot but where we should connect the power supply
18. I think the positon of the electric brush should be delicately designed, or else there would exist some time during the rotation that the torque is dragging the rotor.
19. Very Educational. ...thanks alot guys. ...very much appreciated!
20. thanks!