- #1

Kashmir

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- Homework Statement
- A friend of mine sent me this problem about finding the capacitance.

We have three concentric shells of radius a, b, c. And we've to find the capacitance between x and y.

I need help.

Thank you

- Relevant Equations
- C=Q/V

I want to calculate the capacitance of this system between the points x&y.

So suppose I give a charge Q to the outermost shell and -Q to the innermost shell. To find the capacitance C, I try to find the potential V between the outermost shell and innermost shell .

To find V ,I integrate the electric field and find it out to be V=kq[1/a -1/c] where k=1/(4 *pi*epsilon). Then I can find C =Q/V.

Is this approach correct.

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