Answer the following question: What is so special about the combi… - Vidyadip

Question

Answer the following question: What is so special about the combination $e/m$? Why do we not simply talk of $e$ and $m$ separately?

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Answer

Electric and magnetic field is related with basic equations like,
$eV =1/2 \ mv^2$ or $eE = ma$ and,
$eBv = mv^2/r$
In all these equations, the dynamics of electrons is determined not by $e$ and $m$ separately but by the combination $e/m.$
Hence, we do not talk of $e$ and $m$ seperately.

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