Question

Formula for calculating the mass of the electron $\left(m_{e}\right)$ is

• A. $m_{e}=e \cdot\left(e / m_{e}\right)$
• B. $m_{e}=\frac{e}{\left(e / m_{e}\right)}$
• C. $m_{e}=e+\left(\frac{e}{m_{e}}\right)$
• D. $m_{e}=e-\left(\frac{e}{m_{e}}\right)$

Answer 1

Answer: (B)

Formula for calculating mass of electron $\left(m_{e}\right)$ is
$m_{e}=\frac{e}{\left(e / m_{e}\right)}$.
where, $m_{e}=$ mass of electron in $kg$.
$e=$ magnitude of the charge on the electron in Coulomb $( C )$.
Since, electrons are negatively charged, the charge on electron is $-e$.