1.

Distinguish between drift velocity and mobility

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S. No.Drift velocityMobility
1.The drift velocity is average velocity acquired by the electrons inside the conductor when it is subjected to an electric field.Mobility of an electron is defined as the magnitude of the drift velocity per unit electric field.
2.\(\vec V_d\) = \(\vec a \tau\)μ = \(\frac{e\tau}{m}\) or μ = \(\frac{|\vec V_d|}{\vec E}\)
3.It's unit is ms-1It's unit is m2v-1s-1


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