Recent content by ugenetic

I think I just found my bible, Thank you for the link.

I am on a perpetual quest to understand reactive power. one of the road blocks I encountered is this text: " if inductive load in the grid increases, voltages across loads will drop. In order to maintain power delivered, grid current has to increase" That statement is quite frustrating to...

Radio Waves don't have what it takes to ionize hydrogen, can it?

Thank you, I found it!

My understanding only: tank is only in our perception, an H2 that is going to be ionized only cares about the impact force of whatever particle/energy that is going to hit that h2. A hot surface of a tank, another hot gas, whatever really.

oh... I see, never heard of those concepts, but sounds very intuitive. I need to look into those. so you have not destroyed what I knew about insulators, you expanded my horizon about insulators =)

Thanks, so number of total electrons doesn't matter. Then what about the potential well/box change? doping atom's nucleus and electron cloud should cause... some difference right?

still have not cleared my mind... Are you saying electrons in the bottom of the valence band have free states to jump to? Does this have something to do with dielectric effect? I guess there should be a transient current when all dipoles anti-align with the external field.

Thank you, that's such a relief for me here. The density of state will change, however, the height and width of a band (top edge to bottom edge) will remain the same? doesn't matter if we have 1 thousand or 1 trillion electrons? doesn't matter if the impurity's nucleus have altered the...

Look at the diagram below, after all that doping, 2 blocks of Si have the same band structure? My understanding of band structure and fermi level is that: Given a block of solid (Please note, not a TYPE of solid, but this PARTICULAR block of solid) it will have its own unique band structure...

You just single handed-ly destroyed everything I know about insulator, What bottom band? shouldn't insulator be about "fully filled bands is too far away from conduction, and filled up full so can't accept any electrons either"?

Without going into too much details, and just ignore "eV" for now, If you you cook hydrogen gas in a "magical" tank that will never melt, you will be able to ionize hydrogen gas eventually.

Excellent, thanks. That makes more sense. So , how do we explain the 180 degree phase shift? could you point me to a good place with some mathematical formulations?

Thank you, I think that was a very interesting generalization, I will look into it. However, I was really hoping for a more electron-photon kind of explanation. vaguely I can recall that EM on Metal reflection is governed by some sort of calculation so that EM will be re-radiated from the Metal...

Thank you, so, what's the magic that decides absorption or reflection? I don't need to the exact formulas or magic numbers like quarter or half wavelength, but the underlying principle. Thanks