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Drift speed - class-XII

Question 1 of 57

A charged particle having drift velocity of $7.5\times 10^{-4}m$ $s^{-1}$ in electric field of $3\times 10^{-10}$V $m^{-1}$, mobility is?

  1. $6.5\times 10^6m^2V^{-1}s^{-1}$
  2. $2.5\times 10^6m^2V^{-1}s^{-1}$
  3. $2.5\times 10^4m^2V^{-1}s^{-1}$
  4. $6.5\times 10^4m^2V^{-1}s^{-1}$

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