MH's ideal coil and voltage question

[Magluvin]

The energy in an inductor is stored as the magnetic field.

Dos your question pertain to steady current and when the inductor is shorted?

Yes.   See, I figured it would be the field is where the energy is stored, as is with real inductors. Its the idea that if there is that careful balance between the already induced emf and cemf that holds that balance after the short, as in, the inductor resists changes in current, then that may hold true for when we first apply the input and possibly no current would flow at all.  Make sense?

Mags

[3Kelvin]

I don't really like the thread / forum without Loner.
I think, it is a good way to listen to Professionals with practical Experience.
Perhaps it is better to start a new topic for learning and understanding.

@ Root => Stefan.. Wood you like to insert a new Topic for learning and understanding?

Only my 2 cent in the round.

Love + Peace
3K

Sry for my bad English,
try to become better

[poynt99]

Poynt
Stefan has always been polite and considerate of members requests ,not certain if he is Bound By Laws or his own moral standards.
But
yes he will delete them if asked  By Loner
I have seen it happen many times before.
It takes him some time [apparently time consuming]

Don't be surprised if not only will his posts not be erased, but his account may remain intact as well.

[ramset]

I certainly hope you are right
He is such a good man and has a Bit of a legacy around here .

His experience , perspective , and attitude are really what we need more of ...not less of , his posts never disappointed and were always well thought out and heart felt.

with respect

Chet K

[hoptoad]

snip...
The answer is that you remove the wheels and you replace them with a very flat surface.  The new shopping cart now sits on a giant "air table" just like you have for an air hockey game.  In other words, the shopping cart is now floating frictionlessly on a cushion of air, just like a hovercraft.
snip...

Even a hovercraft will still experience some resistance, however miniscule, from the air it passes through. It will also experience viscosity however miniscule. You can approach zero resistance and zero viscosity but never reach it except in an 'ideal' vacuum. However, in a vacuum, the hovercraft's mode of operation will be negated. Their is no 'ideal' in anything. As I said ,yes, we use ideal equations because they work for real world designing purposes, but the products of our designs will always have a real error margin built in to them however well they approximate the ideal design.

I've agreed with almost everything you've posted on real circuits except for your erroneous assertion that a voltage drop is the same as cemf. I disagree that we can know exactly how an ideal 'anything' will act, because their is no such thing as an ideal in an unideal world.
We can imagine, postulate and use provable math, ignore infinitesimally small values, reach high values of probability and a consensus of agreement - yet we can never 'know' it. We can only know what is real. The whole question of 'ideal' is no different to 'God'. We use all the evidence available to us to argue in favour or against, but will never 'know'. Not being able to know 'ideal' or 'perfection' is not mysticism, its reality.
Cheers