Consider a conductor of length $40 \ cm$,where a potential difference of $10 \ V$ is maintained between the ends of the conductor. Find out the mobility of the electrons,provided the drift velocity of the electrons is $5 \times 10^{-6} \ m/s$.
- A$8 \times 10^{-7} \ m^2 \ V^{-1} \ s^{-1}$
- B$2 \times 10^{-7} \ m^2 \ V^{-1} \ s^{-1}$
- C$4 \times 10^{-6} \ m^2 \ V^{-1} \ s^{-1}$
- D$10^{-7} \ m^2 \ V^{-1} \ s^{-1}$
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