Electrodynamics, Potentials, spherical uncharged shells

AI Thread Summary
The discussion focuses on finding the electric potential inside an uncharged spherical shell of finite width using Laplace's principle, specifically in the context of a uniform electric field along the z-axis. Participants emphasize the importance of applying the 2-D Laplace's equation and suggest using spherical coordinates for simplification. The solution involves separating variables to derive two differential equations and applying Dirichlet boundary conditions for a particular solution. A general solution is obtained by summing over integer values derived from the boundary conditions. This approach is essential for accurately determining the potential within the shell.
Dealingwithphysics
Messages
2
Reaction score
0

Homework Statement


using Laplace principle find potential inside an uncharged spherical shell of finite width. shell is placed in an electric field E in z-axis direction.

Homework Equations


eq0001M.gif
in this equation u is potential. equation is called 2-D Laplace’s equation.

The Attempt at a Solution


diagram which i picture in my mind is like as under.

[/B]
 

Attachments

  • eq0001M.gif
    eq0001M.gif
    360 bytes · Views: 857
Physics news on Phys.org
Dealingwithphysics said:

Homework Statement


using Laplace principle find potential inside an uncharged spherical shell of finite width. shell is placed in an electric field E in z-axis direction.

Homework Equations


View attachment 217586 in this equation u is potential. equation is called 2-D Laplace’s equation.

The Attempt at a Solution


diagram which i picture in my mind is like as under.

[/B]
please don't delete i don't have further info related to problem. its it.
 
Dealingwithphysics said:
3. The Attempt at a Solution
diagram which i picture in my mind is like as under.

Dealingwithphysics said:
please don't delete i don't have further info related to problem. its it.
Your image did not Upload correctly. As you know, we cannot provide tutorial help until you show us your best efforts to work the problem. Please try again to Upload a JPEG or PDF image of your work, or just type your work into the forum window using the math symbols under the sigma ∑ symbol, or use LaTeX (see the tutorial under INFO at the top of the page, Help/How-To). Thank you.
 
First is preferably to use spherically coordinates for our two-dimensional
Laplacian. Then you can separate the
variables and actually obtain two different (simple) differential equations.
Upon obeying the Dirichlet boundary conditions you obtain a particular solution depending on an integer.
Then you sum over all values of those
integer numbers in order to obtain a general solution.
so
 
Thread 'Help with Time-Independent Perturbation Theory "Good" States Proof'
(Disclaimer: this is not a HW question. I am self-studying, and this felt like the type of question I've seen in this forum. If there is somewhere better for me to share this doubt, please let me know and I'll transfer it right away.) I am currently reviewing Chapter 7 of Introduction to QM by Griffiths. I have been stuck for an hour or so trying to understand the last paragraph of this proof (pls check the attached file). It claims that we can express Ψ_{γ}(0) as a linear combination of...
Back
Top