Physics Constants

NAME SYMBOL VALUE

Charge to Mass Quotient, Proton e/m_p 9.57883408(38) × 10⁷ C kg^-1

Charge, Electron e
e/h 1.602176462(63) × 10^-19 C
2.417989491(95) × 10¹⁴ A J^-1

Charge, Electron Specific -e/m_e -1.758819(62) × 10¹¹ C kg^-1

Charge, Elementary e
e/h 1.602176462(63) × 10^-19 C
2.417989491(95) × 10¹⁴ A J^-1

Circulation, Quantum of h/2m_e
h/m_e 3.636947516(27) × 10^-4 m² s^-1
7.273895032(53) × 10^-4 m² s^-1

Classical Electron Radius r_e 2.817940285(31) × 10^-15 m

Compton Wavelength of Electron λ_c 2.426310215(18) × 10^-12 m

Compton Wavelength, Muon λ_C,µ 11.73444197(35) × 10^-15 m

Compton Wavelength, Neutron h/m_nc λ_C,n 1.319590898(10) × 10^-15 m

Compton Wavelength, Proton h/m_pc λ_C,p 1.321409847(10) × 10^-15 m