Marko Rodin Coil -- 007 Device

[MileHigh]

Thank god for the web.  The attached squiggly lines are the final result of the "proof" but actually explaining how you get there step by step is possible if you really want to do that too.  I have to assume that there are some serious classroom lectures on YouTube for those so inclined.  It seems that the Indian universities put a lot of this stuff out there and perhaps professor Walter Lewin did also.

[picowatt]

Thank god for the web.  The attached squiggly lines are the final result of the "proof" but actually explaining how you get there step by step is possible if you really want to do that too.  I have to assume that there are some serious classroom lectures on YouTube for those so inclined.  It seems that the Indian universities put a lot of this stuff out there and perhaps professor Walter Lewin did also.

Perhaps it would be best to just firmly plant the visualization for now...

PW

[MileHigh]

Animation of adding sine waves (harmonics) to make a square wave:

https://en.wikipedia.org/wiki/Square_wave#/media/File:Fourier_series_for_square_wave.gif

Taken from the Wiki:

https://en.wikipedia.org/wiki/Square_wave

PW

And much to the chagrin of many those little initial overshoot spikes never go away!  I seem to recall a teacher saying that a mathematician proved that the final overshoot height of the spikes settles down to a certain finite value as omega goes to infinity.  You end up with infinitely narrow overshoot spikes of a finite height!

The wonders of mathematics!

[minnie]

   Don't leave your ideal current source "open circuit".


   What might happen?


         John.

[MileHigh]

   Don't leave your ideal current source "open circuit".

   What might happen?

         John.

You get the prize for the best question in eons.

Imagine your ideal current source is 5 amperes.  Say the two terminals of the ideal current source are one meter apart.  There is a nice aluminum bus bar that shorts the two terminals together.  As long as the bus bar is in place all is well.  You can sense the forbidden fruit already.

Now, if someone were to remove that bus bar or if it were to suddenly disappear, then you would not want to be in the same room.  There would be a highly unpredictable raging snarling unstoppable plasma arc between the two terminals that would be extremely nasty.

If the same thing happened in space where there was no possible conductive medium for the current then we would go back to the good old Universe imploding and the end of all existence as we know it.