Minimum resolvable temperature difference: Difference between revisions

From formulasearchengine
Jump to navigation Jump to search
← Older edit
en>Addbot
m Bot: Migrating 2 interwiki links, now provided by Wikidata on d:q3016333
en>John of Reading
m →Minimum detectable temperature difference: Typo fixing, replaced: subtley → subtly using AWB
 
Line 1: Line 1:
{{Unreferenced stub|auto=yes|date=December 2009}}
Irwin Butts is what my spouse loves to call me although I don't truly like becoming called like that. To gather coins is what his family and him enjoy. I am a meter reader but I plan on altering it. Years in the past we moved to North Dakota and I adore every working day residing right here.<br><br>Feel free to visit my weblog ... [http://www.innovec.com/node/3171 std home test]
The '''Planck impedance''' is the unit of [[electrical resistance]], denoted by ''Z''<sub>P</sub>, in the system of [[natural units]] known as [[Planck units]]. The Planck impedance is directly coupled to the [[impedance of free space]], ''Z''<sub>0</sub>, and differs in value from ''Z''<sub>0</sub> only by a factor of 4''π''. If the [[Planck charge]] were instead defined to normalize the [[permittivity of free space]], ''ε''<sub>0</sub>, rather than the [[Coulomb constant]], 1/(4''πε''<sub>0</sub>), then the Planck impedance would be identical to the characteristic impedance of free space.
 
:<math>Z_\text{P} = \frac{V_\text{P}}{I_\text{P}} = \frac{1}{4 \pi \epsilon_0 c} = \frac{\mu_0 c}{4 \pi} = \frac{Z_0}{4 \pi} = </math> 29.9792458 [[Ohm (unit)|Ω]]
 
where
 
*<math>V_\text{P}</math> is the [[Planck voltage]]
*<math>I_\text{P}</math> is the [[Planck current]]
*<math>c</math> is the [[speed of light]] in a [[vacuum]]
*<math>\epsilon_0</math> is the [[permittivity of free space]]
*<math>\mu_0</math> is the [[permeability of free space]]
*<math>Z_0</math> is the [[impedance of free space]]
 
== Notes and references==
{{Reflist|2}}
 
==See also==
*[[Natural units]]
 
 
{{Planck's natural units}}
{{Portal bar|Physics}}
 
{{DEFAULTSORT:Planck Impedance}}
[[Category:Natural units]]
 
 
{{Physics-stub}}

Latest revision as of 20:20, 4 July 2014

Irwin Butts is what my spouse loves to call me although I don't truly like becoming called like that. To gather coins is what his family and him enjoy. I am a meter reader but I plan on altering it. Years in the past we moved to North Dakota and I adore every working day residing right here.

Feel free to visit my weblog ... std home test

Retrieved from "https://en.formulasearchengine.com/index.php?title=Minimum_resolvable_temperature_difference&oldid=246325"