Recent content by humo90

So, does Maxwell's 1st and 4th equations reduces to \nabla.E = 0 and \nabla×B = ε_{0}μ_{0}\frac{\partial}{\partial t}E in this case?

Homework Statement How do I show that our equations for the E- and B-fields for the oscillating electric dipole do NOT satisfy Maxwell’s equations? Homework Equations After approximations in retarded potentials, we have our E- and B-field as following: E =...

How do I show that our equations for the E- and B-fields for the oscillating electric dipole do NOT satisfy Maxwell’s equations? After approximations in retarded potentials, we have our E- and B-field as following: E = -ω2μ_{0}p_{0}(4∏r)-1sin(θ)cos[ω(t-\frac{r}{c})]\hat{θ} (Griffiths...

I am confusing about dealing with the vectors in integral boundaries of the electric potential; ^{b}_{a}∫E.ds where a and b are vectors. For example, if I would calculate the potential for outside region of a sphere along z-direction, I would use E=\frac{ρR^3}{3ε_{0}z^2}\hat{z}, and...

I don't know how to build up Fourier series for this problem. I tried several times but no results. Can anybody help me. Consider the 2-d Laplace equation for the potential V(x,y) in the region inside an empty square whose sides lie on the lines x = 0, x = a , y = 0, and y = a, respectively...

To get the total charge, I took the volume integral of the charge density, that is Q = ∫ρ dv = ∫(4*pi*A*ε0*δ(r) - [(ε0*(λ^2)*A*e^-λr) / r]) dv = (4*pi*A*ε0) ∫δ(r) dv - (ε0*(λ^2)*A) ∫((e^-λr) / r) dv = (4*pi*A*ε0) - (ε0*(λ^2)*A) ∫∫∫((e^-λr) / r) (r^2)*sin(∅)*dr*d∅*dθ, since ∫δ(r)...

Need a physical picture! The electric potential of some charge configuration is given by V(r) = A*e^(-λr) / r Its Electric field is E = A*[(λr+1)/(r^2)]*e^(-λr) \hat{r} And its charge density is ρ = 4*pi*A*ε0*δ(r) - [(ε0*(λ^2)*A*e^-λr) / r] , where δ(r) is delta function. The thing that...

Hi, I'm studying at CU-Boulder now and going to transfer to another university. Actually, I'm hesiteting between university of wyoming and university of alabama at huntsville. Is there anyone can advise. I'm going to study Physics and mechanical engineering. One thing more I'm undergrad student...

any one answer me, please?

I want to ask about university of colorado at boulder in general physics (undergraduate). Can anyone help me, please?. And if their better colleges in physics tell me about it, I want a college which creat a student with understanding minds ( I mean good stuff of teaching ) and not very hard in...

first, thanks I know what you said, I didn't mean that now I'm wanting to enroll in nuclear physics, what I want it is a strong college in physics and exactly neaclear baecause I want to study all ( undergraduate and graduate ) in the same university and same place. ok, Is the university of...

Hi everyone I am undergraduate student and until now I don't enroll to any college, but i have admitted in intensive language center of english in Iowa state university, and I want to complete(in the future) my master in nuclear, but now I am searching for strong or very strong college in...