Carlb: /* Inductive Reactance */

2009-04-09T01:18:40Z

Inductive Reactance

← Older revision		Revision as of 18:18, 8 April 2009
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	* L is the inductance in Henries		* L is the inductance in Henries

	~~'''~~External links~~'''~~		==External links==
			* [http://www.electronics2000.co.uk/calc/calcreac.php Reactance calculator] from Electronics 2000

	~~[http://www.electronics2000.co.uk/calc/calcreac.php Reactance calculator] from Electronics 2000~~
			{{electronics}}

TimVK4YEH: added brief info and formulae

2008-10-31T20:40:29Z

added brief info and formulae

New page

Related wiki pages: [[Capacitors]], [[Inductors]], [[Impedance]]

Reactance has some similarities with [[Resistors | resistance]], and can be though of in basic terms as reseistace to alternating currents. This includes currents at radio frequencies.

=== Capacitive Reactance ===

The [[impedance]] of a capacitor is given by the formula

:<math>Z = {1 \over j\omega C}</math>

Where <math>C</math> is the capacitance, <math>\omega</math> is <math>2 \pi f</math>, and <math>f</math> is the frequency. <math>j</math> is "operator j" from phasor analysis.

In prasctical terms this leads to:

<math> X_c = \frac {1} {2\pi F C} </math> where

*<math> X_c </math> is capacitive reactacnce
* F is the frequency of operation in Hertz
* C id the capacitance in Farads

===Inductive Reactance ===

The [[impedance]] of an inductor is given by the formula

:<math>Z = j \omega L \,</math>

where <math>Z\,</math> is the impedance, <math>\omega\,</math> is <math>2 \pi f\,</math>, and <math>f\,</math> is the frequency. <math>j\,</math> is "operator j" from phasor analysis.

In pracical terms this leads to:

<math> X_c = 2 \pi F L </math> where:
* <math> X_c </math> is capacitive reactance
* F is the frequency of operation in Hertz
* L is the inductance in Henries

'''External links'''

[http://www.electronics2000.co.uk/calc/calcreac.php Reactance calculator] from Electronics 2000

Reactance - Revision history

Carlb: /* Inductive Reactance */

TimVK4YEH: added brief info and formulae