In a conductor, if the number of conduction electrons per unit volume is 8.5 × 1028 m-3 and mean free time is 25 fs (femto second), it’s approximate resistivity is:(me = 9.1 × 10-31 kg)

In a conductor, if the number of conduction electrons per unit volume

1.	In a conductor, if the number of conduction electrons per unit volume is 8.5 × 1028 m-3 and mean free time is 25 fs (femto second), it’s approximate resistivity is:(me = 9.1 × 10-31 kg)
A.	10-6 Ω m
B.	10-7 Ω m
C.	10-8 Ω m
D.	10-5 Ω m
Answer» D. 10-5 Ω m

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In a conductor, if the number of conduction electrons per unit volume is 8.5 × 1028 m-3 and mean free time is 25 fs (femto second), it’s approximate resistivity is:(me = 9.1 × 10-31 kg)

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