MH's ideal coil and voltage question

[MileHigh]

I will just make another posting about people failing to step up and account for things or admit that they were wrong and have learned something new.

Let's take the example of the "ideal voltage source 'not being allowed' to vary in time."  That is a completely ridiculous idea that seemingly was plucked out of a hat, for lack of a better term.

Who here stuck to this false idea?

Her is my list:

Brad
Wattsup
Magluvin
Magneticitist

Webby may also be in that group, I can't remember.

How many of you have posted admitting that you were wrong and now acknowledge that an ideal voltage source can vary in time?

I think I know the answer to that:  ZERO

And some of you guys put up a big fight about that.  It was a lot of foolishness representing a lot of wasted time and wasted energy.  Specifically because so much time and energy was wasted on this nonsense, you would think that some of you would at least want to acknowledge that you were wrong and now you know better.  Instead you get nothing.  Grown men that can't simply step up to the plate and acknowledge something.

I am shaking my head.

It's the same story for the "ideal CEMF" nonsense.

I am not saying that every single time you learn something new that you were previously stating incorrectly has to be acknowledged, but the ideal voltage source example is real.  There was so much time and energy wasted with that nonsensical push-back and nobody wants to even admit it.

MileHigh

[verpies]

You have an ideal five henry inductor.  There is an ideal voltage source that is put across the inductor at t=0 and for two seconds the voltage applied across the inductor is a linear ramp that starts at zero volts and ends at two volts.  After that the voltage is zero volts.  What happens?

Now, is anybody going to say something about this?

During the first time period, the current increase is parabolic (a quadratic function of time) and during the second period, the current is constant, since a 0V ideal voltage source is equivalent to a perfect short. 

The magnetic flux through an ideal shorted inductor is always constant^*, and in the absence of a varying external magnetic flux, the current is constant, too.


^{* I like to call this the "Quantitative Lenz Law".}

[poynt99]

Mags,

No electrons are ever added or deleted from the circuit.

It comes down to the electron imbalance as you call it. When the connection is made the source cap becomes less imbalanced, and the charge cap more imbalanced. In both the inductor and ideal wire cases, there is no voltage drop across the "transport medium", therefore no loss of voltage or energy in the transfer. Therefore the two caps settle at 7.07V. Conservation of energy also supports the end voltages to be 7.07V.

In the case when the conductor is a real resistance, there is a voltage drop due to the current through it and this is where the 2.07V is lost in each capacitor. This is also where half the energy is "burned".

[poynt99]

MH,

I'm not sure what the problem is; I haven't seen anything derogatory towards you from Mags in the last few pages or so.

[MileHigh]

MH,

I'm not sure what the problem is; I haven't seen anything derogatory towards you from Mags in the last few pages or so.

The harassment is fully documented in post #809.  It took place about two weeks ago.  He was pushing a nonsensical technical agenda.  If he wasn't aware then that it was technically nonsense then he is surely aware by now that it was pure nonsense.  It is obvious that if the debate was with you or with someone else that he would not have behaved like he did.  It's also obvious that he was enjoying it.

I don't know what this creepy ugly darkness is that exists in his heart and in his soul, but it is clearly there.  In recent times I have warned him several times that there is never going to be a return to the full year of harassment and demeaning and degrading behaviour from him that he perpetrated on me, and he laughed it off and challenged me to prove that it even took place.  Recently he posted to you that he has an "issue" with me.  The man clearly has some problems with respect to me, and the sick borderline-psychotic continual harassment and demeaning and degrading behaviour is not going to start again.

Just now I asked him three times in a polite manner to state publicly that he will not harass me and he has refused to acknowledge the request and he has refused to state that he will not harass me.

The man has problems, and I am making it clear to him publicly that the sick behaviour that he displays is not going to start up again.  There was a flare-up of it two weeks ago, and you could sense how he was licking his chops thinking about doing it some more.

Magluvin:  This is the fourth request, will you publicly state that you will not harass me?

MileHigh