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Surface charge density

  • Thread starter Clancy
  • Start date
  • #1
3
0

Homework Statement



A sphere with excess charge of 1.5 x10 -7 Coulombs, An outer radius of 2.5cm and inner radius of 1.5 cm ( a cavity ). The question is to find the surface charge density on the inside surface.

I'm totally at a loss on this one and couldn't find how to solve it.

Homework Equations



Well surface charge density would be C/area of inner sphere.

The Attempt at a Solution



I couldnt at all figure out how this is done and didnt fiond anythig on it in HRW any help please?
 

Answers and Replies

  • #2
rl.bhat
Homework Helper
4,433
7
If the sphere is made of good conductor, there will be no charge on the inner surface of the sphere.
 
  • #3
6
0
Is this an insulating sphere or a conducting sphere?
 

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