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Multiple Choice ?

  • Thread starter srhly
  • Start date
  • #1
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Can any body help me on this question, I'm stuck. I have a picture attached for clarification.

Consider two concentric spherical conducting shells. O is at the center of the shells. THe inner shell has radius a and charge q1 on it, while the outer shell has radius b=3a and charge q2 on it. Find the electric potential at point p, where p is in between the two shells and OP= 2a.

Which represents the electric potential V at point p?
1. V = 0
2. V = infinity
4. V = K[(q1/2a)+(q2/3a)]
5. V = K(q1+q2)/3a
6. V = K(q1/a + q2/3a)

I have already found that answer 3 was wrong so I didn't include it.
 

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Answers and Replies

  • #2
quasar987
Science Advisor
Homework Helper
Gold Member
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8
Potential are "linear", i.e. V at p = V cause by q1 + V cause by q2.
 

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