Recent content by venomxx

Thanks for the reply, to clarify: Do you mean taking an n-type substrate and doping acceptors on one side of the substrate with a high enough concentraton to change the majority carriers from electrons to holes? Thus you would have a bigger minority carrier concentration on the p-side then...

Bump! Can anyone provide any help/resources?

This comes close but does not answer my question: https://www.physicsforums.com/showthread.php?t=383490

I'm reading up on semiconductors and there seems to be a few fundamentals I cannot find answers for if anyone can help? I understand that n-type substrate is doped with a donor and p-type substrate is doped with an acceptor creating excess electrons and holes. When you put the p-type and...

Cheers for the quick reply micromass! That formula is giving me exactly what I needed! Ill give it a shot deriving it myself:)

Iv been looking for a way to calculate the volume of a cyllender with one end radius "x" and the other end with a radius "y". I know you can do it by considering both circles the base's of 2 cones that when taken away from one another should equal the volume of the cyllender I want. BUT i...

I come from an experimental backround with no astronomy so I am hoping this question makes sense! If the theory of the big bang is correct and space started off at a singularity and is now expanding, there must be an outer edge to this? If this is true then what is it expanding out into...

hi there, I have an advanced QM course I am doing now, a lot of pauli spin matrix identitys, quantum computer initalisation( rotations of 3 spin 1/2 states ), density matrices, two level systems, persistent currents and monopole vector potentials... The math is beyond me, i have...

Hi there, Im having a problem with the results I am getting for an experiment I am doing in relation to the photoelectric effect. My graph is very similar to that in the attachment, except for the fact that the line at A and again after the drop is sloping at a very steep angle to begin...

just a quick guess but your measuring the energy or momentum using the scintillator yeh? If so ΔxΔp = hbar But cΔx = Δt and cΔp = ΔE So you get ΔEΔT = hbar So ΔT = hbar/ΔE Try using this concept to get the average lifetime of the muon, i don't think you can calculate the exact lifetime but...

Subsequently i have found it to be a little different then mentioned above: (z --> uu') has a coupling constant GzCos(z) (z --> dd') has a coupling constant GzCos(z) (z --> cc') has a coupling constant GzSin(z) (z --> ss') has a coupling constant GzSin(z) Can i confirm that this is correct...

Cheers for the response :) So for a Z --> e-e+ and Z--> qq" the coupling constants would be the same? Gz = gz*Sin(z)? I know that it changes for the weak depending on if its interacting with quarks or leptons, I am still unsure of why the difference? Also out of curiosity... i thought it can't...

Homework Statement Just a quick question, the Z can couple to leptons and there antiLeptons and quarks and there corresponding antiquark. Is the coupling constant just Gz for all these interactions? Or is it Gz.Sin(z) for some and not for others? Iv seen different notation and am wondering...

is there any reason why this might not have been answered? Phrasing\clarity? content?

Homework Statement Work out the branching ratio of (W --> e-Ve) The book uses fermi's golden rule to do it, but I am wondering if my different solution is also valid? Homework Equations Γ = 1/τ and ΔEΔT = hbar The Attempt at a Solution If ΔEΔT = hbar, then i can write ΔT =...