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Question about polarization density

  • #1
1
0

Homework Statement


Given a sphere with radius R, centered at (0,0,0), it's dipole density given as ##P\left(\vec{r}\right)=\alpha\left(R-r\right)\hat{z}## where r is the distance from the center of the ball.

I'm required to find:
  1. Bound charge density inside the sphere, bound charge density on the surface of the sphere.
  2. Electric potential in the entire space.
  3. Electric field inside the sphere and when r=R.

Homework Equations




The Attempt at a Solution


I do not know where and how to start, I thought about converting to spherical coordinates because there is no dependency on ##\theta## or ##\phi## but I don't know how that'll help me.


Thanks!
 

Answers and Replies

  • #2
Paul Colby
Gold Member
1,034
230
In your course work, what equation connects charge density with the electric field. Have they talked about ##E## and ##D## fields?
 

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