Recent content by Bullington

I think the original poster's questions have not been answered; these are the questions I will answer and I hope I have interpreted correctly: 1) How can I verify the bjt voltage gain from 1) base to emitter 2) base to collector 3) emitter to collector 2) If I have...

Still fun though! Thanks!

Oh Ok, Thanks!

Whoops! Must have misread the question:

Answer: Answer:

This is not a homework problem, I just am confused a little about the differences between a Nyquist plot and the plot of a complex function. I believe they are the same given the domain of the plot of a complex function is for all real numbers equal to or greater than zero. However, I am having...

Ah, I See now. Last question then; why is ##\psi (x) =0## when ##V(x)=\infty##?

Given the equation ##\frac{d^2 \psi (x)}{{dt}^2}+\frac{2m}{{\hbar}^2}(E-V(x))=0## the general solution is: $$\psi (x)=A_1 e^{ix \sqrt{\frac{2m}{{\hbar}^2}(E-V(x))}} +A_2 e^{-ix \sqrt{\frac{2m}{{\hbar}^2}(E-V(x))}}$$ If we have an infinite potential well: ## V(x)=\begin{cases} \infty \quad x\ge...

I understand what time invariance means but there are a few catches that I'm completely confused about: Suppose we have $$y(t)=x(\alpha t-\beta)$$ to test time invariance we shift the input then "plug" it into the output:$$x_1(t_1)=x(t-t_o)$$ so this is when I become confused; when we plug...

Thanks for your help! Thanks for the sources too, I really Appreciate it! I still have some misunderstandings of the whole process. So when you push the rod, the molecules inside the rod move, but; they can only propagate as fast as the speed of sound. But if you apply a voltage source, then it...

Thanks for the reply! Yes, I just want a conceptual understanding of the question, so everything is perfect: resistance is zero; the two rods are spaced very far apart. What else might be required for the voltage to reach the end? Although; what I'm really after is: Which would travel faster...

The main question stems from the answer for this one: If I have a light year long rod and push it on one end, how long would it take for the other end to move? Still Unsure of this answer. Main Question: If I had 2, light-year long conductive rods with a voltmeter attached at the ends then...

Lets say we do the slit experiment, is there a way to test the energy of the dark spots? I'm getting conflicting information,. Someone said that even if the two lasers are destructive there energy will be double. Is there any documentation on this? Maybe a good introductory book?

Ah, this is interesting, I would like to know where I can find out more about this; I believe there is energy, but I can't justify.

Well, I would think it wouldn't be double, maybe if the lasers interfered constructively then I would say the energy would increase, but two lasers on the same spot without any interference, that doubles? This is a new topic for me so I'd like to look into it a bit more, is there any reference...