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A solid, cylindrical conductor of radius a and charge Q is coaxial with a cylindrical shell of negligible thickness, rad

Posted: Wed Jun 08, 2022 10:48 am
by answerhappygod
A solid, cylindrical conductor of radius a and charge Q is
coaxial with a cylindrical shell of negligible thickness, radius
b>a, and charge -Q.
(a)Find the capacitance of this cylindrical capacitor if its length
is l>>b.
(b)If d = b – a is very small, try to find the approximate result
for the capacitance.