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Find the capacitance between the inner a...

Find the capacitance between the inner and outer curved cylindrical conductor surface as shown in figure. Space between conductor surface is filled with dielectric of dielectric constant `k`. Consider `b lt lt R`:

A

`(epsilon_(0)khRalpha)/b`

B

`(epsilon_(0)kbralpha)/h`

C

`(epsilon_(0)khRalpha)/(2b)`

D

`(epsilon_(0)kbralpha)/(2h)`

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The correct Answer is:
A
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