2.0 x 107\(\Omega^{-1} m^{-1}\)
5.0 x 107\(\Omega^{-1} m^{-1}\)
2.0 x 108\(\Omega^{-1} m^{-1}\)
5.0 x 108\(\Omega^{-1} m^{-1}\)
Correct answer is B
K = \(\frac{1}{RA} = \frac{1}{0.1 \times 2 \times 10^{-7}} = 5 \times 10^7\)
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