MH's ideal coil and voltage question

[poynt99]

I wasn't planning on going much further MH.

There are enough clues now to fully and correctly answer the question, as long as the "infinite current" and "shorted inductor" barriers are no longer in the way.

[verpies]

I do not agree with this. The energy stored in the magnetic field cannot just disappear. That energy has to be dissipated before the opposite magnetic field can be induced

Yes the energy stored in the magnetic field cannot just disappear but it can be transferred elsewhere without dissipation.
P99's current graph is correct so far.

[Magluvin]

Just got to sit and go over it all, and there is more I see.

Have to run out for a while. Life.

Just a quicky....

In an ideal world, Im sure that the windings of the coil would be made to perfection as would be the conductors themselves. Zero flaws. Made in a coil shape, not just bent into shape. Ill go further on that when I get back. Would a single ideal wire allow current to flow?  Until I get a grip an all that has been posted since yesterday, Im still looking at the possibility that current wouldnt flow. Just thoughts, not saying you guys are wrong.

Mags

[tinman]

The energy in the inductor does not "disappear", some is returned to the source during that period.

If the source is ideal,and the voltage is fixed at -3v,then the flow of energy is in opposition to that stored in the inductor loop/magnetic field.
So this energy that is stored cannot return to the source,as the energy from the source is flowing in the wrong direction. This would be like trying to force a water flow through a pump in opposition to the water already flowing out of the pump.


Brad

[tinman]

  There are others that were interested in this and I suggested they brainstorm.  Magluvin may also give it a shot when he comes back.

I honestly disagree with the hand-holding at this point.

Lets all be honest here MH.
You would never have stated in your answer(if you gave one),that the current would have continued to flow during the 0 volt portion of your question. You would have depicted a sloped drop of current,and then onto the negative voltage protion of the question.

This is why you never answered your question--you needed others input.

But of course,we will never know,as you did not answer your own question.

The big "breakthrough" is apparently Brad now accepts that the current ramps up to 2.4 amps after three seconds.  What about the other people that disagreed vehemently about this, what do you have to say?

No i do not.
I am going through the process using your understanding.
The coil is ideal,and so should be the CEMF.
I am yet to see any reason posted why the CEMF is also not ideal.


Brad