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Electronic circuits and components * Course Index * Introduction * About the Author * About this Course * Feedback * Course Navigation * How to use this Course * TINA * Locktronics Fundamentals * Introduction: Fundamentals * Units and Multiples * Electricity * Electronic Principles * Electrical Circuits * Alternating Current ## Alternating Voltage and Current ## Waveforms and Signals ## Amplitude and Frequency ## Examples: Amplitude and Frequency ## Measuring Angles ## Radians ## Examples: Radians ## Average Peak and RMS Values ## Reactance ## Capacitive Reactance ## Worksheet: Capacitive Reactance ## Inductive Reactance ## Worksheet: Inductive Reactance ## Impedance ## Worksheet: Impedance * Assessment: Fundamentals Passive Components * Introduction: Passive Components * Resistors * Capacitors * Inductors * Transformers * Batteries, Fuses, Lamps and Switches * Assessment: Passive Components Semiconductors * Introduction: Semiconductors * Diodes * Transistors * Logic Gates * Assessment: Semiconductors Passive Circuits * Introduction: Passive Circuits * Series and Parallel Connections * Kirchoff's Laws * Potential and Current Dividers * Passive Time Variant Circuits * Assessment: Passive Circuits Active Circuits * Introduction: Active Circuits * Power Supply Circuits * Operational Amplifier Circuits * Transistor Amplifier Circuits * 555 Timer Circuits * Assessment: Active Circuits Parts Gallery * Introduction: Parts Gallery * Passive Component Images * Semiconductor Images * Other Images * Quizzes |
(:Summary:Contains the 'action' links (like Browse, Edit, History, etc.), placed at the top of the page, see site page actions:) (:comment This page can be somewhat complex to figure out the first time you see it. Its contents are documented at PmWiki.SitePageActions if you need help. :) * Print (:comment (:if group Site,SiteAdmin,Cookbook,Profiles,PmWiki*:) (:comment delete if and ifend to enable backlinks:) * %item rel=nofollow class=backlinks accesskey='$[ak_backlinks]'% [[{*$Name}?action=search&q=link={*$FullName} | $[Backlinks] ]] (:ifend:) :) * Login Alternating Voltage and Current<^< Alternating Current | Course Index | Waveforms and Signals >^>(:nl:)  Unlike direct currents which have steady values and always flow in the same direction, alternating currents flow alternately one way and then the other. The alternating potential difference, or voltages, produced by alternating currents are thus partly positive and partly negative. An understanding of alternating currents and voltages is important in a number of applications including power supplies, filters and amplifiers. (:nl:)(:table style="clear:both":)
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Page last modified on July 21, 2011, at 02:44 PM