09 March 2016 3 2K Report

Hi people,

I dont understand why when we apply the electric field to the metal Ef remains the same. Ef as translation energy of electrons remains the same but we accelerate the electrons with applied electric field so the translation energy increases too?  In other hand according the formula for Ef(m*,N/L^3), where m* is the effective mass depends only on material, N/L^3-number of electrons in unit volume-depends on material too. So it turns out that the Ef actually depends only on properties of the metal.

Please take a look at the attached picture.

Thank you.

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