5.4: Coulomb's Law - Physics LibreTexts
https://phys.libretexts.org:443/Bookshelves/University_Physics/University_Physics_(OpenStax)/Book%3A_University_Physics_II_-_Thermodynamics_Electricity_and_Magnetism_(OpenStax)/05%3A_Electric_Charges_and_Fields/5.04%3A_Coulomb's_Law
WebSep 12, 2022 · Finally, the new constant \(\epsilon_0\) in Coulomb’s law is called the permittivity of free space, or (better) the permittivity of vacuum. It has a very important physical meaning that we will discuss in a later chapter; for now, it is simply an empirical proportionality constant.
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