Capacitor - Revision history

Jnc: +cat

2018-12-14T00:49:33Z

+cat

Jnc: Add links

2018-05-05T20:14:22Z

Add links

Jnc: Specify passive/2-connectors

2018-05-02T00:01:04Z

Specify passive/2-connectors

Jnc: /* Construction */ typo

2018-03-23T14:09:13Z

‎Construction: typo

Jnc: Add construction info

2018-03-23T14:07:38Z

Add construction info

Jnc: A start

2018-03-23T02:10:16Z

A start

New page

A '''capacitor''' is a element in an electrical [[circuit]] which stores charge ([[electron]]s).

When [[voltage]] is first applied to a capacitor, [[current]] flows as electrons move into the capacitor. Depending on the size of the capacitor, this will continue for a period, and then tail off, as the capacitor fills up.

Unlike resistors, capacitors show infinite [[impedance]] to [[direct current]]; to [[alternating current]], their response depends on the [[frequency]] - high frequency signals can pass through a capacitor, but not low frequency. The larger the capacitor, the lower the frequencies which can pass through it.

==See also==

* [[Resistor]]
* [[Inductor]]

← Older revision		Revision as of 00:49, 14 December 2018
Line 14:		Line 14:

	* [[Inductor]]		* [[Inductor]]
		+
		+	[[Category: Electrical Basics]]

@@ Line 3: / Line 3: @@
 When [[voltage]] is first applied across the two connections of a capacitor, [[current]] flows, as electrons move into the capacitor. Depending on the size of the capacitor, this will continue for a period, and then tail off, as the capacitor fills up.
-Unlike resistors, capacitors show infinite [[impedance]] to [[direct current]]; to [[alternating current]], their response depends on the [[frequency]] - high frequency signals can pass through a capacitor, but not low frequency. The larger the capacitor, the lower the frequencies which can pass through it.
+Unlike [[resistor]]s, capacitors show infinite [[impedance]] to [[direct current]]; to [[alternating current]], their response depends on the [[frequency]] - high frequency signals can pass through a capacitor, but not low frequency. The larger the capacitor, the lower the frequencies which can pass through it.
 ==Construction==
-Capacitors are usually formed by having two conducting surfaces separated by a layer of insulation; the larger the surface, the larger the ability to store electrons (i.e. the capacitance).
+Capacitors are usually formed by having two conducting surfaces separated by a layer of [[insulation]]; the larger the surface, the larger the ability to store electrons (i.e. the capacitance).
-Over time, techniques have been developed to pack large surfaces into small volumes. One of the most common is the electrolytic capacitor, which separates two long, narrow layers of metal foil with an electrolye; the foil pair is then rolled up into a cylinder.
+Over time, techniques have been developed to pack large surfaces into small volumes. One of the most common is the electrolytic capacitor, which separates two long, narrow layers of metal foil with an [[electrolyte]]; the foil pair is then rolled up into a cylinder.
 ==See also==
 * [[Inductor]]

@@ Line 1: / Line 1: @@
-A '''capacitor''' is a element in an electrical [[circuit]] which stores charge ([[electron]]s).
+A '''capacitor''' is a passive element in an electrical [[circuit]] which stores charge ([[electron]]s).
-When [[voltage]] is first applied across a capacitor, [[current]] flows, as electrons move into the capacitor. Depending on the size of the capacitor, this will continue for a period, and then tail off, as the capacitor fills up.
+When [[voltage]] is first applied across the two connections of a capacitor, [[current]] flows, as electrons move into the capacitor. Depending on the size of the capacitor, this will continue for a period, and then tail off, as the capacitor fills up.
 Unlike resistors, capacitors show infinite [[impedance]] to [[direct current]]; to [[alternating current]], their response depends on the [[frequency]] - high frequency signals can pass through a capacitor, but not low frequency. The larger the capacitor, the lower the frequencies which can pass through it.

@@ Line 9: / Line 9: @@
 Capacitors are usually formed by having two conducting surfaces separated by a layer of insulation; the larger the surface, the larger the ability to store electrons (i.e. the capacitance).
-Over time, techniques have been developed to pack large surfaces into small volumes. One of the most common is the elecrolytic capacitor, which separates two long, narrow layers of metal foil with an electrolye; the foil pair is then rolled up into a cylinder.
+Over time, techniques have been developed to pack large surfaces into small volumes. One of the most common is the electrolytic capacitor, which separates two long, narrow layers of metal foil with an electrolye; the foil pair is then rolled up into a cylinder.
 ==See also==