Joule Thief 101

[tinman]

   MH. the original inductor question was very thought provoking for me and I've
learned quite a bit. I would love to do the experiment.
  Obviously people use ideals in circuit calculations every day and they're very
useful.
   Unfortunately the tinman can't grasp concepts, he just knows.
          John.

MH says a voltage cannot exist across an ideal inductor while a DC current is flowing through it,but now he says that he is creating this DC current that flows through this ideal inductor by placing a voltage across it

Talk about mumbo jumbo/

Brad

[tinman]

Brad:

<<< I dont remember seeing such a quote that he agreed with you--i will have to go find it--it may be there,im not sure. >>>

This is what Verpies said:

<<< 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. >>>

I already reposted that to Magluvin in post #2554.  It comes from his response to you.

<<< And you said a PM could not do useful work-->wonder what created that current flow in the superconductor?.  >>>

Mr. Hand created the current flow in the superconductor.

MileHigh

Oh right.
So if i place my hand over the superconductor,it will produce a current flow and a magnetic field.

What about that fact that the superconductors field matches the every move of the PMs field,and so the PM remains stationary. Try doing that with two PMs in opposition. I remember verpies talking about this frozen field theory some where--will have to find that.


Brad

[MileHigh]

Brad:

<<<
Oh i can do that,if i could be bothered with all the math,and it would take me some time to answer your question if we swapped out ideal for real world stuff. But im interested in the !ideal! part. Infinite Tau's,no resistance,infinite currents-->sounds like much more fun to me.
>>>

I am calling your bluff.  I don't believe you for a second.

And you still are clueless with respect to the ideal inductor with "no resistance, infinite currents."  If you only knew how you really looked.

MileHigh

[MileHigh]

Brad:

You are clearly, and most unfortunately, back in a bad place again where your thoughts are scrambled.

<<< How could it be out of context MH?. You either stated that a voltage cannot exist across an ideal coil when a DC current is flowing through it,or you didnt say that--which is it?.  >>>

I did indeed say that a voltage cannot exist across an ideal inductor when DC current is flowing through it.

But what I did NOT say is this:

<<< In one statement you say a voltage cannot exist across an ideal inductor while a DC current flows through it,but your question states an ideal voltage of 4 volts is across the ideal inductor while a DC current flows through it.  >>>

So what is up with you, why are you stating this nonsense?

MileHigh

[MileHigh]

MH says a voltage cannot exist across an ideal inductor while a DC current is flowing through it,but now he says that he is creating this DC current that flows through this ideal inductor by placing a voltage across it

Talk about mumbo jumbo/

Brad

One more time, something is scrambled up there in your head.