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Constants. |
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|
quantity |
symbol |
value |
|
acceleration
due to gravity |
g |
9.80665
m/s2 |
|
Naperian
(natural) logarithm base |
e |
2.718281828459045235 |
|
pi |
|
3.141592653589793238 |
|
speed of
light in vacuum |
c |
299792458
m/s |
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Boltzmann
constant |
KB |
1.380658 × 10-23 J/K |
|
Planck
constant |
h |
6.6260755
× 10-34 J s |
|
Planck
constant, reduced |
|
1.05457266
× 10-34 J s |
|
electron
charge magnitude |
e |
1.60217733
× 10-19 C |
|
electron
mass |
me |
9.1093897
× 10-31 kg |
|
electron
radius, classical |
re |
2.81794092
× 10-15 m |
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permeability
of free space |
|
4 12.566370614× 10-7 N/A2 |
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permittivity
of free space |
|
8.854187817× 10-12 F/m |
|
Characteristic resistance of
free space |
|
120 376.7 |
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Josephson frequency |
2e/h |
483.6GHz/mV |
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=