reduced Planck constant
Sign in to saveAlso known as ℎ-bar, h-bar, ħ, reduced Planck's constant, Planck action, Planck angular momentum, Dirac's constant, Dirac constant
the Planck constant divided by 2 π
Key facts
- Common symbols
- h {\displaystyle h}
- Si unit
- J·s ( joule -second)
- In si base units
- kg ⋅ m ⋅ s
- Dimension
- M L 2 T − 1 {\displaystyle {\mathsf {M}}{\mathsf {L}}^{2}{\mathsf {T}}^{-1}}
- Value
- 6.626 070 15 × 10 J⋅Hz , 4.135 667 696 ... × 10 eV⋅Hz
via Wikipedia infobox
Wikidata facts
- Instance of
- action
- Named after
- Max Planck
- Image
- U+210F.svg
Show 4 more facts
- Commons category
- Reduced Planck constant
- numeric value
- 0.0000000000000000000000000000000001054500197921765038361332005608763113259910823179829917019987020293609409175803660557740077
- measured physical quantity
- action
- maintained by WikiProject
- WikiProject Mathematics
via Wikidata · CC0
~21 min read
Encyclopedic overview
The Planck constant, or Planck's constant, denoted by
h
Excerpted from Wikipedia’s “reduced Planck constant” article, available under the CC BY-SA 4.0 licence.