In the above question, the resistance between the square faces is.

Options

A. `3 xx 10^-9 ohm`
B. `3 xx 10^-7 ohm`
C. `3 xx 10^-5 ohm`
D. `3 xx 10^-3 ohm`

Answer

D

Explanation

`l = 100 cm, A = 1 cm^2`
`R = (rho l)/(A) = (3 xx 10^-7 xx 100)/(1 xx 10^-2) = 3 xx 10^-3 ohm`.