Physics · PYQ NEET UG 2020

A charged particle having drift velocity of \( 7.5 \times 10^{-4}\text{ m s}^{-1} \) in an electric field of \( 3 \times 10^{-10}\text{ Vm}^{-1} \), has a mobility in \( \text{m}^2\text{ V}^{-1}\text{ s}^{-1} \) of:

1. A
   \( 2.5 \times 10^{6} \)
2. B
   \( 2.5 \times 10^{-6} \)
3. C
   \( 2.25 \times 10^{-15} \)
4. D
   \( 2.25 \times 10^{15} \)