An electron and a proton, starting from rest, are accelerated through an electric potential difference of the same magnitude. In the process, the electron acquires a speed ve, while the proton acquires a speed vp. Find the ratio ve/vp. ve/vp =

Respuesta :

Answer:

42.84

Explanation:

Let's take [tex]v_p[/tex] to be the proton's velocity and [tex]v_e[/tex] to be the electron's velocity and [tex]V[/tex] to be the potential difference through which both the charges are accelerated  and further taking [tex]e[/tex]  be the charge of proton and electron.

Using the given values:

[tex]m_p=1.67\times10^-^2^7kg\\\\m_e=9.1\times 10^{-31}kg[/tex]

The expression for the work done is

[tex]W_p=W_e=eV[/tex]

Solving for the kinetic energy equation:

[tex]W_p=W_e\\\\0.5m_pv_p^2=0.5m_ev_e^2\\\\\frac{v_e}{v_p}=\sqrt{\frac{m_p}{m_e}}\\\\=\sqrt{\frac{1.67\times10^{-27}}{9.1\times10^{-31}}}\\\\=42.83[/tex]

Thus the  ratio ve/vp. ve/vp =42.84