Réaktansi - Wikipédia

# Réaktansi

### Ti Wikipédia, énsiklopédi bébas

  Artikel ieu ngeunaan éléktronik. Keur artikel nu patali jeung "réaktif" atawa "réaktani" dina widang kimi, tempo réaktivitas.
  Keur sawala ngeunaan konsép psikologi réaktansi, tempo réaktansi (psikologi).

Dina analisis sirkuit listrik arus bulak-balik (contona sirkuit séri RLC), réaktansi mangrupakeun bagian imajinér tina impedansi, sarta disababkeun ku ayana induktor atawa kapasitor dina sirkuit. Réaktansi mangrupakeun komponén tina impedansi listrik kompléks sirkuit [[arus bulak-balik, nu ngahasilkeun fase antara arus listrik jeung voltase dina sirkuit. Réaktansi dilambangkeun X sarta diukur dina satuan ohm.

- Lamun X > 0, réaktansi disebut induktif.
- Lamun X = 0, sirkuit murni résistif, hartina teu miboga réaktansi.
- Lamun X < 0, disebut kapasitif.

Hubungan antara impedansi, résistansi, jeung réaktansi ditunjukkeun ku persamaan

dimana

  Z nyaéta impedansi dina ohm,
  R nyaéta résistansi dina ohm,
  X nyaéta réaktansi dina ohm,
  sarta j nyaéta unit imajinér .

Sering ogé cukup ku ukur nganyahokeun gedéna impedansi:

Keur élemén nu murni induktif atawa kapasitif, gedéna impedansi dibasajankeun jadi ukur reaktansi.

Réaktansi ditunjukkeun ku

numana XL jeung XC nyaéta réaktansi induktif jeung kapasitif, patuturut.

| Artikel ieu keur dikeureuyeuh, ditarjamahkeun tina basa Inggris. Bantosanna diantos kanggo narjamahkeun.

Inductive reactance (symbol XL) is caused by the fact that a current is accompanied by a magnetic field; therefore a varying current is accompanied by a varying magnetic field; the latter gives an electromotive force that resists the changes in current. The more the current changes, the more an inductor resists it: the reactance is proportional to the frequency (hence zero for DC). There is also a phase difference between the current and the applied voltage.

Inductive reactance has the formula

where

  XL is the inductive reactance, measured in ohms
  ω is the angular frequency, measured in radians per second
  f is the frequency, measured in hertz
  L is the inductance, measured in henries

Capacitive reactance (symbol XC) reflects the fact that electrons cannot pass through a capacitor, yet effectively alternating current (AC) can: the higher the frequency the better. There is also a phase difference between the alternating current flowing through a capacitor and the potential difference across the capacitor's electrodes.

Capacitive reactance has the formula

where

  XC is the capacitive reactance measured in ohms
  ω is the angular frequency, measured in radians per second
  f is the frequency, measured in hertz
  C is the capacitance, measured in farads

## [édit] Référénsi

[1] Pohl R. W. Elektrizitätslehre. – Berlin-Gottingen-Heidelberg: Springer-Verlag, 1960.

[2] Popov V. P. The Principles of Theory of Circuits. – M.: Higher School, 1985, 496 p. (In Russian).

[3] Küpfmüller K. Einführung in die theoretische Elektrotechnik, Springer-Verlag, 1959.

## [édit] Tempo ogé

- SI electromagnetism units
- Susceptance, the reciprocal of reactance.
- XC = Capacitive reactance: Opposition to Current.
- XL = Inductive reactance: Opposition to Voltage.

## [édit] Tumbu luar

- Resistance, Reactance, and Impedance
- Inductive Reactance: Endless Examples & Exercises

Disalin ti "http://su.wikipedia.org../../../r/%C3%A9/a/R%C3%A9aktansi.html"

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