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?

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.

According to the latest CODATA reports the charge of electron is known very precisely ≈ 1.6021765314 ×10−19 ≈ 1.6021765314 × 10 19. My question is: How is this charge determined with such high …

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 …

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 …

@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?

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 …

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 …

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 …

May 29, 2015 · The "elementary charge" (really a coupling constant) for quantum chromodynamics is about the same as the Planck charge, so that theory is strongly coupled, and interactions between …