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Negatively charged particle with spin 1/2. A component of mundane terrestrial matter, and part of all neutral atoms and molecules. It has a mass about 1/1800 that of a proton. Its antiparticle is the positron.

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Why is it called Einstein equation?

Why is the equation $ \frac{D_n}{\mu_n}=\frac{D_p}{\mu_p}= V_t$ called Einstein equation where $D_n$ represents diffusion coefficient of electrons, $D_p$ represents diffusion coefficient of holes, $\mu_n … , \mu_p$ represents mobility of electrons and holes respectively and $V_t$ represents thermal voltage. …
Nikhil Upadhyay's user avatar