Physics

Physics

Problem

In a metal, the average drift velocity of electrons is 2.0×10−4 m s−12.0\times10^{-4}\,\text{m}\,\text{s}^{-1} when an electric field of 0.50 V m−10.50\,\text{V}\,\text{m}^{-1} is applied. Calculate the mobility of electrons in the metal.
Intuitive explanation

Electron mobility captures how easily charge carriers respond to an electric field—it's the ratio of drift velocity to the applied field strength. Since you're given both the drift velocity and the field directly, you just need to recognize that mobility is defined as μ=vd/E\mu = v_d / E and plug in the numbers with careful attention to units.

Intuitive explanation

Electron mobility captures how easily charge carriers respond to an electric field—it's the ratio of drift velocity to the applied field strength. Since you're given both the drift velocity and the field directly, you just need to recognize that mobility is defined as μ=vd/E\mu = v_d / E and plug in the numbers with careful attention to units.

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