513.001 Molecular and Solid State Physics

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Physical
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Hall angle

A magnetic field Bz is applied in the z-direction. An electric field Ex is applied in the x-direction. Write down the Lorentz force law for the force on an electron for this case. For a diffusive metal, the force is proportional to the drift velocity, F = mvd/τ. The Hall angle is the angle between the electric field and the drift velocity. Give an expression for the Hall angle.