2.55 x 105 Ωm
2.55 x 102 Ωm
3.93 x 10-6 Ωm
3.93 x 10-8 Ωm
Correct answer is D
R = (1)/a, P = (R.a)/1 = (0.1 x 3.14)/2 (10-3/2)3
∴ P = (0.1 x 3.14 x 10-6)/2 x 4
= 0.3925 x 10-7 OR -3.930 X 10-8 Ωm
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