I'm doing an assignment where the lecturer has said scalar function g(x,y,z) = x^3 + y + z^2
and vector field F = (2xz,sin y,e^y)
and asked find
a) grad g
which is fairly easy, but then
b) div g
and my understanding was that you can only find the divergence of a vector...
I need to Compute for both waves the magnetic flux density B and the Poynting vector P = E x H.
Now I figure I need to use faradays law to find B, but how do I do Del cross E where E= Eo sin (kz-wt) and again for E = Eo(cos(kz-wt)ex + sin(kz-wt)ey)
Having some problems with my Electromag Unit again.
Heres the questions I'm having problems with, any help would be appreciated
1
For plane electromagnetic waves in a homogeneous, linear, uncharged non conductor
Formulate the Maxwell equations for the electromagnetic fields E and B...
In regards to the conditions of Megans question the question just states that there is a bound surface charge density sigma b, and a free surface charge density sigma f.
So how do I use that in Maxwells equations?
Okay our lecturer said that we should try to simplify both theorems when A is a constant vector, not a function of space coordinate r=(x,y,z)).
Does that help someone to work out how do do this question, if someone could show me how to do it I would be very happy
I'm trying to do the same Question as Galipop,
and while I have managed to do question 2 he posted I haven't gotton Question One yet.
Any idea how to derive Gauss and stokes for that field?
It seems to want us to derive the theorems rather than proove them
Hey everyone, this is my first question on here, but I've seen you all be very helpful to others to I was hoping someone could clarify something for me.
1. How does Gauss law modify in dielectric materials?