ह्या लेखाचा/विभागाचा इंग्रजी किंवा अमराठी भाषेतून मराठी भाषेत भाषांतर करावयाचे बाकी आहे. अनुवाद करण्यास आपलाही सहयोग हवा आहे. ऑनलाईन शब्दकोश आणि इतर सहाय्या करिता भाषांतर प्रकल्पास भेट द्या.



This template allows the values of physical constants to be quickly entered in articles. As of now, it returns CODATA 2010 recommended values, but using the template allows all the articles using it to be updated at once when more recent values become available. In particular, if the proposed new SI definitions are approved, the numerical values of the constants used in the new definitions will become exact whereas those of the constants used in the old definition will acquire an uncertainty.

symbol
If set to yes, the value is preceded by the symbol of the constant, followed by or = depending on whether or not round is set.
round
If omitted, the value is shown along with its standard uncertainty. If set to an integer n, the value is rounded to the first n digits after the decimal point (retaining trailing zeros). If set to auto, the value is rounded to the most digits such that the standard uncertainty is no more than 0.5 units in the last place.
unit
If set to no, the unit of measurement is not shown.
ref
If set to no, no reference is given. If set to only, only the reference is given.
after
Text (e.g. punctuation) to be shown after the constant before the reference.
runc
If set to yes, this will provide only the relative standard uncertainty of the value and its reference.
{{physconst|c|unit=no|after= [[metre per second|metres per second]].}}
२९,९७,९२,४५८ metres per second.[]
{{physconst|mu0|symbol=yes}}
μ0 = १२.५६६७०१४...×10−७ N/A2[]
{{physconst|G|symbol=yes}}
G = ६.६७४८(31)×10−११ m3⋅kg−1⋅s−2[]
{{physconst|h|round=auto|ref=no}}
६.६२६७०×10−३४ J⋅s
{{physconst|hbar|round=2|symbol=yes}}
ħ ≈ १.०५×10−३४ J⋅s[]
The relative standard uncertainty of ''m''<sub>u</sub> is {{physconst|mu|runc=yes|after=.}}
The relative standard uncertainty of mu is १.२×10−८.[]
For the electron mass, {{physconst|me|runc=yes|symbol=yes|ref=no}}.
For the electron mass, ur(me) = १.२×10−८.
NIST publishes the CODATA value of the [[elementary charge]].{{physconst|e|ref=only}}
NIST publishes the CODATA value of the elementary charge.[]

Available constants

संपादन
Code Constant Value "auto" rounding Relative standard uncertainty
alpha fine-structure constant α = ७.२९७५२६६४(17)×10−३ α ≈ ७.२९७५२६६×10−३ ur(α) = २.३×10−१०[]
bwien Wien's displacement constant b = २.८९७७२९(17)×10−३ m⋅K b ≈ २.८९७७३×10−३ m⋅K ur(b) = ५.७×10−७[]
c speed of light c = २९,९७,९२,४५८ m/s c ≈ २९,९७,९२,४५८ m/s ur(c) = []
e elementary charge e = १.६०२७६२०८(98)×10−१९ C e ≈ १.६०२७६×10−१९ C ur(e) = ६.१×10−९[]
eps0 vacuum permittivity ε0 = ८.८५४८७१७...×10−१२ F⋅m−1 ε0 ≈ ८.८५४८७१७×10−१२ F⋅m−1 ur(ε0) = []
eV electronvolt 1 eV = १.६०२७६२०८(98)×10−१९ J 1 eV ≈ १.६०२७६×10−१९ J ur(1 eV) = ६.१×10−९[१०]
F Faraday constant F = ९६,४८५.३३२९(59) C/mol F ≈ ९६,४८५.३३३ C/mol ur(F) = ६.२×10−९[११]
G gravitational constant G = ६.६७४८(31)×10−११ m3⋅kg−1⋅s−2 G ≈ ६.६७४×10−११ m3⋅kg−1⋅s−2 ur(G) = ४.७×10−५[]
G0 conductance quantum G0 = ७.७४८९१३१०(18)×10−५ S G0 ≈ ७.७४८९१३१×10−५ S ur(G0) = २.३×10−१०[१२]
ge electron g-factor ge = −२.००२१९०४६१२(52) ge ≈ −२.००२१९०४६२ ur(ge) = २.६×10−१३[१३]
gmu muon g-factor gμ = −२.००२३१४१८(13) gμ ≈ −२.००२३१४२ ur(gμ) = ६.३×10−१०[१४]
h Planck constant h = ६.६२६७०४०(81)×10−३४ J⋅s h ≈ ६.६२६७०×10−३४ J⋅s ur(h) = १.२×10−८[१५]
hbar Planck constant ħ = १.०५४७१००(13)×10−३४ J⋅s ħ ≈ १.०५४७१८×10−३४ J⋅s ur(ħ) = १.२×10−८[]
invalpha inverse fine-structure constant 1/α = १३७.०३५९९३९(31) 1/α ≈ १३७.०३५९९ ur(1/α) = २.३×10−१०[१६]
k Boltzmann constant k = १.३८०४८२(79)×10−२३ J/K k ≈ १.३८०४८५×10−२३ J/K ur(k) = ५.७×10−७[१७]
KJ Josephson constant KJ = ४,८३,५९७.८,५२५(30)×10 Hz⋅V−1 KJ ≈ ४,८३,५९७.८५३×10 Hz⋅V−1 ur(KJ) = ६.१×10−९[१८]
me electron mass me = ९.१०९८३६(11)×10−३१ कि.ग्रॅ. me ≈ ९.१०९८३६×10−३१ कि.ग्रॅ. ur(me) = १.२×10−८[१९]
mmu muon mass mμ = १.८८३३१९४(48)×10−२८ कि.ग्रॅ. mμ ≈ १.८८३३१६×10−२८ कि.ग्रॅ. ur(mμ) = २.५×10−८[२०]
mp proton mass mp = १.६७२२१९८(21)×10−२७ कि.ग्रॅ. mp ≈ १.६७२२१९×10−२७ कि.ग्रॅ. ur(mp) = १.२×10−८[२१]
mpome proton-to-electron mass ratio mp/me = १,८३६.१५२७३९(17) mp/me ≈ १,८३६.१५२७३९ ur(mp/me) = ९.५×10−११[२२]
mtau tau mass mτ = ३.१६७७(29)×10−२७ कि.ग्रॅ. mτ ≈ ३.१,६७५×10−२७ कि.ग्रॅ. ur(mτ) = ९.०×10−५[२३]
mu atomic mass constant mu = १.६६०३९४०(20)×10−२७ कि.ग्रॅ. mu ≈ १.६६०३९×10−२७ कि.ग्रॅ. ur(mu) = १.२×10−८[]
mu0 vacuum permeability μ0 = १२.५६६७०१४...×10−७ N/A2 μ0 ≈ १२.५६६७०१४×10−७ N/A2 ur(μ0) = []
NA Avogadro constant NA = ६.०२२४०५७(74)×10२३ mol−1 NA ≈ ६.०२२४०×10२३ mol−1 ur(NA) = १.२×10−८[२४]
Phi0 magnetic flux quantum Φ0 = २.०६७३३३१(13)×10−१५ Wb Φ0 ≈ २.०६७३३×10−१५ Wb ur(Φ0) = ६.१×10−९[२५]
R gas constant R = ८.३१४५९८(48) J⋅mol−1⋅K−1 R ≈ ८.३१४६ J⋅mol−1⋅K−1 ur(R) = ५.७×10−७[२६]
Rinf Rydberg constant R = १,०९,७३,७३१.५६८०८(65) m−1 R ≈ १,०९,७३,७३१.५,६८५ m−1 ur(R) = ५.९×10−१२[२७]
RK von Klitzing constant RK = २५,८१२.८०७५५५(59) Ω RK ≈ २५,८१२.८०७५६ Ω ur(RK) = २.३×10−१०[२८]
sigma Stefan–Boltzmann constant σ = ५.६७०६७(13)×10−८ W⋅m−2⋅K−4 σ ≈ ५.६७०×10−८ W⋅m−2⋅K−4 ur(σ) = २.३×10−६[२९]
Z0 characteristic impedance of vacuum Z0 = ३७६.७३०१३६१... Ω Z0 ≈ ३७६.७३०१३६१ Ω ur(Z0) = [३०]
  1. ^ a b "CODATA Value: speed of light in vacuum". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  2. ^ a b "CODATA Value: magnetic constant". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  3. ^ a b "CODATA Value: Newtonian constant of gravitation". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  4. ^ a b "CODATA Value: Planck constant over 2 pi". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  5. ^ a b "CODATA Value: atomic mass constant". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  6. ^ a b "CODATA Value: elementary charge". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-22 रोजी पाहिले. 2014 CODATA recommended values
  7. ^ "CODATA Value: fine-structure constant". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  8. ^ "CODATA Value: Wien wavelength displacement law constant". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  9. ^ "CODATA Value: electric constant". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  10. ^ "CODATA Value: electron volt". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-22 रोजी पाहिले. 2014 CODATA recommended values
  11. ^ "CODATA Value: Faraday constant". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  12. ^ "CODATA Value: conductance quantum". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  13. ^ "CODATA Value: electron g factor". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  14. ^ "CODATA Value: muon g factor". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  15. ^ "CODATA Value: Planck constant". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  16. ^ "CODATA Value: inverse fine-structure constant". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  17. ^ "CODATA Value: Boltzmann constant". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  18. ^ "CODATA Value: Josephson constant". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  19. ^ "CODATA Value: electron mass". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  20. ^ "CODATA Value: muon mass". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  21. ^ "CODATA Value: proton mass". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  22. ^ "CODATA Value: proton-electron mass ratio". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  23. ^ "CODATA Value: tau mass". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  24. ^ "CODATA Value: Avogadro constant". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  25. ^ "CODATA Value: magnetic flux quantum". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  26. ^ "CODATA Value: molar gas constant". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  27. ^ "CODATA Value: Rydberg constant". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  28. ^ "CODATA Value: von Klitzing constant". The NIST Reference on Constants, Units, and Uncertainty. 2017-01-18 रोजी पाहिले. 2014 CODATA recommended values
  29. ^ "CODATA Value: Stefan-Boltzmann constant". The NIST Reference on Constants, Units, and Uncertainty. 2015-09-25 रोजी पाहिले. 2014 CODATA recommended values
  30. ^ "CODATA Value: characteristic impedance of vacuum". The NIST Reference on Constants, Units, and Uncertainty. 2017-01-18 रोजी पाहिले. 2014 CODATA recommended values