MH's ideal coil and voltage question

[MileHigh]

MH,

For your test (13s of a few different voltages), the different voltages have no affect on the outcome.

So the question could have been asked with one voltage and still have the same answer, correct?

I did the simulation with 0.0000000001f (femto) Ohms, which is very very small, and ran it for 100s, far exceeding the limit of your test. The current stayed flat at 0A for the full 100s. Needless to say the voltage across the coil also remained at 4V for the entire 100s.

I think we can conclude from these results that my answer is correct.

Poynt, I am really surprised and I suspect that you are a victim of GIGO from your simulator.  You put in a resistance value that was too low for the sim and it got scrambled brains. (a bug!)  That affected you also I am afraid!  lol  I almost suspect you may have worked 36 hours non-stop or something.

Perhaps forget about the sim and do it in your head?

Hold on, I will find the posting number of another sim also.  ===>>> Please look at post #79.

[Magneticitist]

wait, are we now saying that the answer MH was looking for, was to clarify that no current would flow and it would act like an open circuit?
this is confusing because I recall at least a couple of us saying that and it was some ol whackadoo or crazy stuff, or whatever.

edit- nevermind I see MH is in disagreement, now idk what is going on

[MileHigh]

wait, are we now saying that the answer MH was looking for, was to clarify that no current would flow and it would act like an open circuit?
this is confusing because I recall at least a couple of us saying that and it was some ol whackadoo or crazy stuff, or whatever.

edit- nevermind I see MH is in disagreement, now idk what is going on

It could be sleep deprivation, you never know.  It's like the old cliche that when you factor in all of the rewrites and recompiles and bug fixes, a software engineer can only write 10 lines of code a day.

However, the other issue is that we are getting way off the beaten track.  We still haven't really scratched the surface when it comes to actually understanding the how and why of what is going on in this trivial circuit.  I suppose we need to actually get it answered also.  The how and why is the real point in this whole exercise.

[poynt99]

Poynt, I am really surprised and I suspect that you are a victim of GIGO from your simulator.  You put in a resistance value that was too low for the sim and it got scrambled brains. (a bug!)  That affected you also I am afraid!  lol  I almost suspect you may have worked 36 hours non-stop or something.

Perhaps forget about the sim and do it in your head?

Hold on, I will find the posting number of another sim also.  ===>>> Please look at post #79.

I saw that post.

His R value is too big. I can obtain similar results as I increase the resistor value. 1p Ohm is nowhere near 0 Ohms. Have Partzman try 0.00000000000000000000000000000000000001f Ohms. He will see a flatline of current (0A) for at least 100 seconds.

I did work this out in my head first, and the sim supports my conclusion.

[MileHigh]

Well now I feel like I am in the Twilight Zone.

Poynt:  The current is one over "L" integral v dt.

That's 1/5 * integral (4) dt.

That's 1/5 * 4t.

That's 4/5*t.

When t = 3 seconds that's 12/5 = 2.4 amps.

Can we get out of the Zone now?