Science Constants - E to F Ee | Ff A to B | C to D | E to F | G to I | J to L | M | N to Q | R to T | U to Z Ee   Name Symbol Value   e e 2.7182818284590452353602874713526    Earth's Average Density 5.517 × 103 kg m-3   Earth's Average Radius R 6.37 × 106 m   Earth's Magnetic Field, Horizontal Component of B0 1.8 × 10-5 T   Earth's Mass M 5.972 × 1024 kg   Earth-Moon Mean Distance 3.844 × 108 m   Electric Constant (1/µ0c2) ε0 8.854187817 × 10-12 F m-1   Electrical Power Specification (UK) 230V ac, 50Hz    Electrical Power Specification (US) 115V ac, 60Hz    Electron Charge e e/h 1.602176462(63) × 10-19 C 2.417989491(95) × 1014 A J-1 Electron Charge to Mass Quotient -e/me -1.758820174(71) × 1011 C kg-1   Electron g-Factor ge -2.0023193043737(82)    Electron Gyromagnetic Ratio γe γe/2π 1.760859794(71) × 1011 s-1 T-1 28024.9540(11) MHz T-1   Electron Magnetic Moment µe µe/µB µe/µN -928.476362(37) × 10-26 J T-1 -1.0011596521869(41)  -1838.2819660(39)    Electron Magnetic Moment Anomaly ae 1.1596521869(41) × 10-3    Electron Mass me 9.10938188(72) × 10-31 kg 5.485799110(12) × 10-4 u 0.510998902(21) MeV   Electron Molar Mass M(e) Me 5.485799110(12) × 10-7 kg mol-1   Electron Radius, Classical re 2.817940285(31) × 10-15 m Electron Specific Charge -e/me -1.758819(62) × 1011 C kg-1   Electron to Shielded Helion Magnetic Moment Ratio (gas, sphere, 25°C) µe/µ'h 864.058255(10)    Electron to Shielded Proton Magnetic Moment Ratio (H2O, sphere, 25°C) µe/µ'p -658.2275954(71)    Electron-α-Particle Mass Ratio me/mα 1.3709335611(29) × 10-4    Electron-Deuteron Magnetic Moment Ratio µe/µd -2143.923498(23)    Electron-Deuteron Mass Raio me/md 2.7244371170(58) × 10-4    Electron-Muon Magnetic Moment Ratio µe/µµ 206.7669720(63)    Electron-Muon Mass Ratio me/mµ 4.83633210(15) × 10-3    Electron-Neutron Magnetic Moment Ratio µe/µn 960.92050(23)    Electron-Neutron Mass Ratio me/mn 5.438673462(12) × 10-4    Electron-Proton Magnetic Moment Ratio µe/µp -658.2106875(66)    Electron-Proton Mass Ratio me/mp 5.446170232(12) × 10-4    Electron-Tau Mass Ratio me/mτ 2.87555(47) × 10-4    Electronvolt eV 1.60217733 × 10-19 J Electronvolts, Million MeV 1.6 × 10-13 J   Elementary Charge e e/h 1.602176462(63) × 10-19 C 2.417989491(95) × 1014 A J-1 emf of Daniell Cell 1.08 V   emf of Lechlanché Cell 1.46 V   emf of Nife Cell 1.40 V   emf of Weston Cell 1.0186 V   Energy Production, Sun's 3.90 × 1026 W   Energy, Hartree Eh 4.35974381(34) × 10-18 J 27.2113834(11) eV   Euler's Constant γ C 0.57721566490153286061  Ee | Ff To the top | To the bottom A to B | C to D | E to F | G to I | J to L | M | N to Q | R to T | U to Z Ff   Name Symbol Value   Faraday Constant F 96485.3415(39) C mol-1 Fathom fath 1.8288 m 72 in 6 ft Feigenbaum's Constant δ 4.669210609102990  Fermi Constant 1.4 × 10-50 J m-3 Fermi Coupling Constant GF/(ħc)3 1.16639(1) × 10-5 GeV-2   Fine Structure Constant α 7.297352533(27) × 10-3  First Radiation Constant 2πhc2 c1 3.74177107(29) × 10-16 W m2   First Radiation Constant for Spectral Radiance 2hc2 c1L 1.191042722(93) × 10-16 W m2 sr-1   Fluid Ounce, UK floz 2.841 × 10-5 m3   Fluid Ounce, US floz 2.957 × 10-5 m3   Foot ft ' 0.3048 m Foot, Board (Timber) fbm 2.359737216 × 10-3 m3 Foot, Cube ft3 cu. ft. 2.8316846592 × 10-2 m3 1728 in3   Fransén-Robinson Constant 2.8077702420    Free Neutron, Half-life of T 650 s   Free Space, Permeability of µ0 4π × 10-7 N A-2 12.566370614 × 10-7 N A-2   Free Space, Permittivity of ε0 8.854187817 × 10-12 F m-1   Ee | Ff To the top | To the bottom A to B | C to D | E to F | G to I | J to L | M | N to Q | R to T | U to Z

Page compiled: Wed Sep 05 18:37:52 GMT+01:00 2001