Use the experiment to measure the ratio of the electrons charge to it's mass.

$V_{\text a}~ \text {in V} $ | $\Rightarrow v_0~ \text {in}\frac{\text m}{\text s} $ | coil current $I~\text {in A}$ |
$\Rightarrow B \text{ in T}$ | Radius r in cm |
$\frac{e}{m}=\frac{2\cdot V_{\rm{a}}}{\left(B\cdot r\right)^2}~\text{in}\frac{\text C}{\text {kg}}$ |
---|---|---|---|---|---|

$0$ | $0$ | $-$ | |||

$0$ | $0$ | $-$ | |||

$0$ | $0$ | $-$ | |||

$0$ | $0$ | $-$ | |||

$0$ | $0$ | $-$ | |||