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List of physical constants. The constants listed here are known values of physical constants expressed in SI units; that is, physical quantities that are generally believed to be universal in nature and thus are independent of the unit system in which they are measured.
Fundamental Physical Constants — Extensive Listing. Relative std. Quantity Symbol Value Unit uncert. u. r. UNIVERSAL speed of light in vacuum c;c. 0299792458 m s1(exact) magnetic constant . 04π 107N A2. = 12:566370614::: 107N A2(exact) electric constant 1/ . 0c2 .
The constant of proportionality k is called Coulomb’s constant. In SI units, the constant k has the value k = 8.99 × 10 9 N ⋅ m 2 /C 2. k = 8.99 × 10 9 N ⋅ m 2 /C 2. The direction of the force is along the line joining the centers of the two objects.
Fundamental Physical Constants — Extensive Listing. 0c Newtonian constant of gravitationc μ0UNIVERSAL299 792 458 1.256 637 061 27(20) × 10−6 0.999 999 999 87(16) 8.854 187 8188(14) × 10−12 376.730 313 412(59) 6.674 30(15) × 10−11 6.708 83(15) × 10−39 6.626 070 15 × 10−34 4.135 667 696 . . . × 10−15 1.054 571 817 . . . × 10 ...
8 Μαρ 2024 · Some common constants are the Speed of Light in Vacuum (c), Planck's Constant (h), Boltzmann Constant (k), Elementary Charge (e), etc. In this article, we will provide a comprehensive list of all important constants in physics.
Interactive Graphs; References; Physical Constants. see also Units and Conversions. Symbol Value Description; q: 1.602 × 10-19 coulomb: electronic charge: q: 1.602 × 10-19: conversion from joules to eV: m 0: 9.108 × 10-31 kg: ... Stefan-Boltzmann constant: kT/q: 0.02586 V: thermal voltage at 300 K: kT/q:
The values of the fundamental physical constants provided at this site are recommended for international use by CODATA and are the latest available.
