Calculate the resistance of a hollow cyl...

Calculate the resistance of a hollow cylindrical pipe of inner and outer radius respectively 0.2 m and 0.3 m. The length of the cylinder is 3.14 m and its specific resistance is `2 xx 10^(-8) ohm xx m` .

A

`0.4 xx 10^(-6) Omega`

B

` 3 xx 10^(-6) Omega`

C

`8 xx 10^(-6) Omega`

D

`0.8 xx 10^(-6) Omega`

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