The mass of an electron is

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

9.11\times10^{-31}\ \text{kg}

, and that of a proton is

1.67\times10^{-27}\ \text{kg}

. Find the ratio

F_e/F_g

of the electric force and gravitational force exerted by the proton on the electron.