What is the capacitance between two points on three concentric shells?

[Kashmir]

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

 

[hutchphd]

Among many ways, you could treat it as two capacitors (a,b ---b,c) in series. What is the capacitance of two concentric shells?

 

[Kashmir]

Among many ways, you could treat it as two capacitors (a,b ---b,c) in series. What is the capacitance of two concentric shells?

I would love to get a hint to do it any other way. Something that is more basic, like by using just the starting definition of C=Q/ V.
Thank you for your reply :)

 

[berkeman]

View attachment 329683

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

You've been at PF long enough to know that any schoolwork-type problem like this needs to be posted in the Schoolwork forums, and you need to show your best efforts to work on the problem. This thread is now closed. Please re-post in the Schoolwork forums. Thank you.