Capacitance of concentric shells

  • #1
for the part of Capacitance of concentric shells

why Va equals that?


why the voltage on the surface of a is affected by -Q/(4pi*epsilon*b),
which represents the voltage on the surface of b

these two voltage represents something at different position!!
 

Answers and Replies

  • #3
thank you
i forgot that V in a shell/sphere is the same as if it's on the surface
I thought the p.d. by the larger shell were different on the surface of the larger shell and on the surface on the smaller shell........
that's why i got trouble

anyway, thanks~
 

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