MH's ideal coil and voltage question

[tinman]

It is true only for an ideal inductor that has an infinite inductance.
In an ideal inductor having a finite inductance, in series with an ideal voltage source, the current will be able to flow and it will increase linearly in time without a limit.




Specifically, one current, that would flow due to the nature of a shorted voltage source and a second current, that would flow in a shorted ideal inductor (shorted by the voltage source). 
That's all, that I was able to decode, so far.

Anyway, that statement above is so awkwardly worded.
First you write about two currents flowing and at the end you write about currents not flowing - that sounds contradictory.

No,i said currents being produced,not flowing.

I think you wanted to write about two currents, that would flow if they were not opposing each other.

And that is what i wrote.
The current produced by the EMF of our ideal voltage,would meet the equal and opposite from the CEMF produced by the ideal inductor.

When dealing with ideals,we deal with absolutes,and there for the CEMF is ideal,meaning that it is equal and opposite to that of the EMF.

Brad

[tinman]

 author=verpies link=topic=16589.msg483812#msg483812 date=1462987219]

It is true only for an ideal inductor that has an infinite inductance.
In an ideal inductor having a finite inductance, in series with an ideal voltage source, the current will be able to flow and it will increase linearly in time without a limit.

And how would it do that if the CEMF is equal to the EMF that created it?


Brad

[verpies]

And how would it do that if the CEMF is equal to the EMF that created it?

The current would not increase if CEMF = -EMF, but they would be so only in the case when the ideal inductor had infinite inductance.

Note that I was explicitly writing about the current increase through an ideal inductor with finite inductance.

[verpies]

But can we say for sure that our understanding of those 2 forms of reactance is not derived from
some existing level of resistance?

No, the resistance behaves significantly different from inductive reactance.  The former converts current to heat and the latter converts current to magnetic flux.

...and sheesh it's like, definitely ultra confusing, when we have different variables measures in the same unit but they are somehow working entirely independent.

They both have the same units, but mathematically they are in different complex dimensions which are orthogonal.

You don't seem to have a problem with distances in different orthogonal dimensions, that are not affecting each other despite being expressed by the same units: meters or feet.

[minnie]

    What a silly thing this has turned out to be. Ideal seems to have caused total confusion.
  The whole thing is just a matter of  a bit of maths,which I can't do!
   I would love to do the experiment, a good quality choke and a couple of forklift LA. cells
  would make an ideal power supply. I can see smoke in the equation.
    I don't see superconductors as the equivalent zero resistance.
   Another point I'd like to make is the continual appearance of things like "You lied MH."
   to me lying is deliberate fraud whereas misinformation due to incomprehension
   isn't lying.
      I lied when I said I knew the answer when in reality I didn't.
    Have a great day you all,warmest regards, John.