Količina elementarnog naelektrisanja

Količina elementarnog naelektrisanja, obično se označava sa e je posebna količina naelektrisanja jednog protona, ili ekvivalentno, količina negativnog naelektrisanja koje nosi jedan elektron.^[1] Ovo je osnovna fizička konstanta. Da bi se izbegla konfuzija u vezi sa oznakom e ponekad se naziva i „elementarna količina pozitivnog naelektrisanja“. Izmerena vrednost je od oko 1,602176487 (40) × 10^-19 C, Kulona u Međunarodnom sistemu jedinica, ili vrednost 4,80320427 (10) × 10^-10 StatC u centimetar-gram-sekund CGS sistemu (engl. Centimetre gram second).^[2] Dok u sistemu atomskih jedinica, е kao jedinica naelektrisanja ima vrednost 1.

Reference uredi

^ The symbol e has many other meanings. Somewhat confusingly, in atomic physics, e sometimes denotes the electron charge, i.e. the negative of the elementary charge. In the US, the base of the natural logarithm is often denoted e (italicized), while it is usually denoted e (roman type) in the UK and Continental Europe.
^ This is derived from the National Institute of Standards and Technology value and uncertainty, using the fact that one coulomb is exactly 7009299792458000000♠2997924580 statcoulombs. The conversion factor is ten times the numerical speed of light in metres per second.

Literatura uredi

Fundamentals of Physics, 7th Ed., Halliday, Robert Resnick, and Jearl Walker. Wiley, 2005

[1] The symbol e has many other meanings. Somewhat confusingly, in atomic physics, e sometimes denotes the electron charge, i.e. the negative of the elementary charge. In the US, the base of the natural logarithm is often denoted e (italicized), while it is usually denoted e (roman type) in the UK and Continental Europe.

[2] This is derived from the National Institute of Standards and Technology value and uncertainty, using the fact that one coulomb is exactly 7009299792458000000♠2997924580 statcoulombs. The conversion factor is ten times the numerical speed of light in metres per second.

[1]

[2]