InterviewSolution
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what is mobility? derive the equation of mobility with respect to drift velocity and electric field. |
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Answer» The charge carrier in most metals is the negatively charged electron (see electron scattering).Mobilityis formally defined as the value of the drift velocity per unit of electric field strength; thus, the faster the particle moves at a given electric field strength, the larger themobility. in solid state physics, electron mobility is characterizes how quickly an electron can move through a metal or semiconductor, when pulled by an electric field. In semiconductors, there is an analogous quantity for holes called hole mobility. when an electric field is applied across a piece of material, the electrons respond by moving with an average velocity called drift velocity. |
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