Search results

  1. X

    Non-changing current with C-EMF

    @(*steve*) superconductors are their own complications but its a good idea, but limited at larger magnetic fields, and not sure how it would react to "back-emf". This is more of an experiment on paper, but certainly in a realistic one I won't risk myself and overcomplicate things with large...
  2. X

    Non-changing current with C-EMF

    That is one of the solution in my head @Arouse1973 , but what about the power required? How much of a massive difference is it? In my calculations due to the low resistance the power required in would be massive. However, @Gryd3 pointed out that the internal resistances of the supplies would be...
  3. X

    Non-changing current with C-EMF

    Well then, that's the rate of change in the magnetic field ;), do you need anything else to aid the calculations?
  4. X

    Non-changing current with C-EMF

    @Arouse1973,The change in magnetic field, well it could be going from 0T to 0.5T in 0.010 seconds.
  5. X

    Non-changing current with C-EMF

    Ah, again with my simple math mistakes! Okay, the area is 0.04 m^2, and the time should be 0.010s, not 0.1s. The voltage will be -2V.
  6. X

    Non-changing current with C-EMF

    @Arouse1973 glade to hear it! But thanks to you and @Gryd3 for making me realize I could avoid the "common" method, and finding our own... solution!
  7. X

    Non-changing current with C-EMF

    @(*steve*) hope you could join!
  8. X

    Non-changing current with C-EMF

    @Arouse1973 it seems that I caught your interest? :rolleyes: Btw, is what I'm proposing common... or I'm asking something weird...? Because I don't think this is a typical question/problem.
  9. X

    Non-changing current with C-EMF

    Its not a project at all...an experiment to prove the possibility of maintaining the same current on a conductor, without exhausting enormous power. I self-teach myself electronics and tropics in electrical engineering on my own free time(oh and Physics!), and really tend to think of abstract...
  10. X

    Non-changing current with C-EMF

    @Arouse1973 I really did... I've had this idea in my mind for a while now so...
  11. X

    Non-changing current with C-EMF

    Nope, just made it up @Arouse1973 haha.
  12. X

    Non-changing current with C-EMF

    The intuitive power required to do this: (2.0042VDC)^2/(0.0000042Ω) = 956385W, That's 227710 times greater than the original input.
  13. X

    Non-changing current with C-EMF

    Okay, consider it to be a copper square that is 20 cm wide, 0.4cm thick, 20 cm long. Its resistance is about 4.2x10^-5 Ω, inductance : 56 nH , magnetic field is a 0.5T uniform field from an electromagnet. Voltage should be: 0.0000042Ω x 1000A = 0.0042VoltsDC. Imagine the magnetic field changing...
  14. X

    Non-changing current with C-EMF

    But, if you think about it a bit.. how much power do we actually need a factor of what :p? How can we calculate the power that's going to be exhausted additionally to maintain the same current when back-emf is induced by a magnetic field?
  15. X

    Non-changing current with C-EMF

    Making the issue of power negligible! Dropping the 10,000W required input significantly! No need for 100V x 100A I guess :D! Okay, it seems that it is indeed possible to solve such a problem, and not exhaust enormous power. I just wanted a solution where I can add more voltage to a system...
  16. X

    Non-changing current with C-EMF

    Btw, what do all think of my suggestion to use a dc/dc converter? With a 300W input power to sustain 100A @3VDC? Does it make any sense?Could it work? @Arouse1973 , @Gryd3
  17. X

    Non-changing current with C-EMF

    @Gryd3, could you use an example(need numbers to visualize!).
  18. X

    Non-changing current with C-EMF

    What about the power consumption? @Arouse1973
  19. X

    Non-changing current with C-EMF

    X2(me too!) @Arouse1973
  20. X

    Non-changing current with C-EMF

    @Arouse1973 but most constant current sources will apply massive power, in this case 10kW to sustain that current. Maybe using a dc/dc converter could work! Applying 300W input and get an output in that range?
Top