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S vs Impedance - What's the difference?

s | impedance |

As a letter s

is the letter s with a.

As a noun impedance is

impedance (physics, measure of opposition to flow of current).

s

Translingual

{{Basic Latin character info, previous=r, next=t, image= (wikipedia s)

Letter

  • The nineteenth letter of the .

    • Symbol

    (wikipedia) (mul-symbol)
  • voiceless alveolar fricative
  • Symbol for second , an SI unit of measurement of time.

    • See also

    (Latn-script) * * (esh) * (dze) * {{Letter , page=S , NATO=Sierra , Morse=ยทยทยท , Character=S , Braille=? }} Image:Latin S.png, Capital and lowercase versions of S , in normal and italic type Image:Fraktur letter S.png, Uppercase and lowercase S in Fraktur Symbols for SI units ----

    impedance

    English

    Noun

  • (label) A measure of the opposition to the flow of an alternating current in a circuit; the aggregation of its resistance, and inductive and capacitive reactances; the ratio of voltage to current treated as complex quantities.
  • (label) A quantity analogous to electrical impedance in some other energy domain
  • # a measure of opposition to motion of something subjected to a force; the ratio of force to velocity treated as complex quantities.
  • # the ratio of sound pressure to volume flow rate treated as complex quantities.
  • a measure of the opposition caused by differences between two paradigms, especially between object-oriented development and relational databases
  • * 1997 , Bhavani M. Thuraisingham, Data Management Systems: Evolution and Interoperation (ISBN 0849394937), CRC Press, page 33:
    • Some argue that having impedance mismatch is difficult for programming intensive applications.
  • * 2002 , Jim Melton, Advanced SQL:1999: Understanding Object-Relational and Other Advanced Features (ISBN 1558606777), Morgan Kaufmann, page 353:
    • But the impedance mismatch between SQL and Java was no better than between SQL and other languages.
  • * 2004 , Scott W. Ambler, The Object Primer: Agile Model-Driven Development with UML 2.0 (ISBN 1397805218), Cambridge University Press, page 442:
    • Why does a technological impedance mismatch exist?

    Usage notes

    Impedance is universally given the symbol Z in technical works which is often used as a synonym for the word even in running text.

    Derived terms

    * impedance coil * characteristic impedance * image impedance * impedance of free space * impedance plethysmography

    Related terms

    * impediment