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  1. X

    Maximum current?

    Yet, it's possible to have higher continuous current than the maximum, provided higher cooling. Air, water, or be a bit more fancy and use "liquid helium".
  2. X

    Maximum current?

    A copper plate that is 0.5m wide, 2m long, and 3mm thick how much maximum current can it carry continuously without any damages? Basically how much power can it deliver continuously?
  3. X

    Non-changing current with C-EMF

    Anyone know the price range of such power supplies, or how much the components could cost at the end(estimations anyone)? If I'm interested in building/buying them? @Gryd3 @Arouse1973 @(*steve*)
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    Non-changing current with C-EMF

    @Gryd3 Yea that's right... say you had such a system and you picked the components(by choosing the components you feel are right), could you guess/ or approximate it? I mean, I know we can't put a time frame here(could we guess it?), is it possible to have the constant current source change...
  5. X

    Non-changing current with C-EMF

    So...how fast would the constant current source react to induced-counter emf? Also in both my example the range of voltage would be the applied EMF + counter-emf for the constant current correct? So for example if the applied voltage prior to counter emf was 2V and CEMF is 1V the voltage range...
  6. X

    Non-changing current with C-EMF

    "Practice = losses" Well most components nowadays are high in efficiency so I assume I can have the current constant like 95% and more possibly...?
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    Non-changing current with C-EMF

    @Gryd3, @Arouse1973 As long as current is constant 90% of the time(which I think it would be with a CCS) I think that's "idea" for me, nothing can be 100%. I know there are losses, and efficiency issues... But as long as current is constant most of the time that's great for this experiment. I...
  8. X

    Non-changing current with C-EMF

    What do you mean by the ideal world :p, is there a catch?! If I try to work on a model?
  9. X

    Non-changing current with C-EMF

    Well, that last post was interesting(the mistakes... we're to much!) Anyhow... I was wondering about the rate of reaction by the constant current source. How fast would it be? Equal to the rate of counter-emf's induction? What I mean by this is... if counter-emf is induced simultaneously the...
  10. X

    Non-changing current with C-EMF

    I pretty much got what I needed. My misconception of the additional power to increase voltage has been adjusted, how constant current works(kinda getting the idea), the rate of reaction which I believe is equal to counter-emf induction OR quicker? I mean, would it be fast enough to maintain...
  11. X

    Non-changing current with C-EMF

    @Gryd3 , @Arouse1973, @(*steve*) , @BobK How can the constant current source detect the change in current, and change it's voltage at instantaneous speeds(microseconds)?
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    Non-changing current with C-EMF

    Well that just changed everything, thank you so much BobK and everyone!! @BobK , to know that fact that I need only 2004.2W it mind boggling. Because I assumed I needed 2.0042^2/R, but in fact the only thing that will indeed increase is the voltage, and therefore, the power will increase by the...
  13. X

    Non-changing current with C-EMF

    @BobK If the resistance is that low, and the voltage is quite large the power is also going to be quite large as well. But I guess that is the point you're making in my calculations is wrong.
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    Non-changing current with C-EMF

    @(*steve*) thank you for that detailed response even though some of it is more than what my plate can take! Still thanks, gives me more things to consider. @Arouse1973 I agree. @BobK if the resistance of the conductor itself is 4.2x10^-5, how can the CCS apply 2.0042V with only 2004.2W? What...
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    Non-changing current with C-EMF

    The reason I brought up the factor of time is thinking of how fast the constant-current source would react to the counter-emf. Would it be faster than back-emf or how would that work out? Because maybe due to some factors... back-emf would be much quicker than the source in reacting, or maybe...
  16. X

    Non-changing current with C-EMF

    Well the concept of a constant current is starting to make a bit of sense. A power supply that will increase its internal resistance significantly to the point where the path of least resistance would be the load. But what happens to the voltage? It increases? Because, what makes sense to me is...
  17. X

    Non-changing current with C-EMF

    I'll go study this some more! The reason why I'm confused is because how can we maintain current and have voltage change without changing the resistance or increasing power(ohms law) how does a constant current work...that is what I need to study @Arouse1973 @Merlin3189 @(*steve*) But quick...
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    Non-changing current with C-EMF

    @Merlin3189 Thanks for the post, reminded me of a few things... If you check on post 74 where I stated that in order to maintain constant current while back-emf is present I require not 4.2W but almost 1MW of power check the numbers please, It might not make sense but give you the idea of what...
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    Non-changing current with C-EMF

    Well they all are the same thing, it just induced voltage the opposes you supply voltage. Well, consider it as counter-emf or -V. Yes c-emf is induced due to the conductor being next to a magnetic field. In my example specifically, the magnetic field is 0.5Tesla and it goes from 0-0.5T in 10...
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    Non-changing current with C-EMF

    @(*steve*) given the example I proposed to @Arouse1973, there is something that will be missing. Let me explain: V = IR, so current is 1kA and resistance is 4.2x10^-5Ω that gives 0.0042VDC Now the power needed: P = I2R = 1,000,000x0.000045Ω= 4.2W but that's not including the back-emf induced by...
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