References

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NameRepresentationAdditional Notes
Coulomb's LawKq1q2r2u⃗K\frac{q_1q_2}{r^2}\vec{u}
CoulombC\text{C}SI unit of charge
Fundamental Unit of Chargeeee=1.60â‹…10−19 Ce=1.60\cdot10^{-19}\text{ C}
Electrostatic ConstantKKK=9.0â‹…109 N m2/C2K=9.0\cdot10^9\text{ N m}^2/\text{C}^2
Electric Field created by a point charge on spaceE⃗\vec{E}E⃗=14πϵ0qr2r⃗\vec{E}=\frac{1}{4\pi\epsilon_0}\frac{q}{r^2}\vec{r}
Vacuum Permittivityϵ0\epsilon_0ϵ0=8.85â‹…10−12 F/m\epsilon_0=8.85\cdot10^{-12}\text{ F}/\text{m}
Electron Massmem_e9.11â‹…10−31 kg9.11\cdot10^{-31}\text{ kg}
Proton Massmpm_p1.67â‹…10−27 kg1.67\cdot10^{-27}\text{ kg}