Hi,
I am trying to derive the path length of a charged particle in a B-field. I am assuming the particle will travel a distance L along the applied field. Using the following equations for the path length of a helix and gyroradius:
Helix defined as
[a*cos(t),a*cos(t),b*t] for t on [0,T] has...
I have an relation between permittivity and conductivity as follows:
\epsilon(\omega) = 1 + \frac{4\pi\iota\sigma(\omega)}{\omega}
Yet am unclear as to how it was derived. Does this relationship have a name and/or derivation to follow through somewhere? also, I believe it is cgs units...
Ok, i knew that fact, but had forgotten that setting integral to Qenclosed required assuming information about D. Thanks.
One final question. I need to relate the E field outside this faux capacitor to that inside...specifically,
Find a relationship between the electric fields in the y = 0...
Homework Statement
A semi infinite slab of material, -\infty<x<0, -\infty<z<\infty, -d/2<y<d/2
has uniform polarization P in the +y direction.
What are the E and D field along x-axis at y=0.
Homework Equations
\oint \vec{D}\cdot d\vec{a} = Q_{free enclosed}
D= \epsilon_{0}E+P
The...
Hello, I have a quick question regarding the bragg condition.
I know that it is most often stated as 2dSin \theta=n\lambda
But I have come across a case (Kittel chp9 pg 255, where it is written as (\vec{k}+\vec{G})^{2} = k
I cannot really see how the vectorial case is the same as the...