Impedance - Revision history

Jnc: +cat

2018-12-14T01:00:52Z

+cat

Jnc: Correct cat

2018-10-19T12:20:03Z

Correct cat

Jnc: An OK start

2018-07-15T04:05:03Z

An OK start

New page

'''Impedance''' is for [[alternating current]]s what [[resistance]] is for [[direct current]]s - a measure of the ability of a [[circuit]] to prevent the flow of a [[current]] when a [[voltage]] is applied across the circuit.

Since both [[capacitor]]s and [[inductor]]s influence alternating currents, the impedance takes into account their contribution. Technically, their combined effects are known as '''reactance'''; the impedance also includes the effect of any ordinary [[resistor]]s in the circuit.

Note that the impedance of a capacitor or inductor depends on the [[frequency]] of the alternating current applied to it, so the reactance or impedance of a circuit are a function of frequency.

{{Stub}}

← Older revision		Revision as of 01:00, 14 December 2018
Line 6:		Line 6:

	{{semi-stub}}		{{semi-stub}}
		+
		+	[[Category: Electrical Basics]]

← Older revision		Revision as of 12:20, 19 October 2018
Line 5:		Line 5:
	Note that the impedance of a capacitor or inductor depends on the [[frequency]] of the alternating current applied to it, so the reactance or impedance of a circuit are a function of frequency.		Note that the impedance of a capacitor or inductor depends on the [[frequency]] of the alternating current applied to it, so the reactance or impedance of a circuit are a function of frequency.

−	{{~~Stub~~}}	+	{{semi-stub}}