Sep 24, 2020 · A coulomb is 6.241 x 10^18 elementary charges. But what exactly is a coulomb? And what do we mean exactly by a charge? how was it measured?

Apr 11, 2022 · The basic fundament of physics is observation and measurements. It was found experimentally that the proton and electron have equal and opposite charge, period. All models have …

Oct 19, 2019 · The electron is an elementary particle, part of the SM, pointlike, with no substructure, or spatial extent. Its intrinsic properties include its EM charge, which we still call the elementary charge.

Mar 18, 2022 · The elementary charge is a constant, which expresses the charge of one electron in terms of coulombs, but it's not really a unit. You could express a quantity of charge using the charge …

Jul 17, 2021 · Bare charge should be the charge of the particle without any quantum fluctuations, so we cannot measure it. For example, for an electron, how is this charge related to the tabulated …

Aug 31, 2015 · Starting with the Millikan oil drop experiments the electron was found to have a definite charge and the microcosm of elementary particles made mathematical sense , from nuclear physics …

@Lubos: So you are basically saying that we have an elementary charge, because magnetic monopoles exist and we have no elementary mass, because we measure a positive cosmological constant?

Dec 17, 2024 · Both the vacuum permeability and the elementary charge are fundamental constants of the universe, so why did the International Bureau of Weights and Measures decide to switch the …

This would turn an approximate equality in an exact equality, and hence prove the equality of the charges of the proton and the electron (apart from the sign). Thus it would explain this equality. By …

May 20, 2018 · By contrast, charge is an additive conserved number characterizing elementary particles. In elementary particle studies one has discovered elementary constituents of the proton, for …