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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 ## Electrostatics ## Electric Fields ## Capacitance ## Charge on a Capacitor ## Electric Field Strength ## Examples: Electric Field Strength ## The Unit of Capacitance ## Charge Capacitance and Voltage ## Energy Stored in a Capacitor ## Examples: Capacitance ## The Unit of Inductance ## Flux Linkage and Current ## Energy Stored in an Inductor ## Examples: Inductance ## Magnetism ## Electromagnetism ## Magnetic Fields ## Electromagnets ## Magnetic Field Strength ## Examples: Magnetism * Electrical Circuits * Alternating Current * 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 Charge on a Capacitor<^< Capacitance | Course Index | Electric Field Strength >^>(:nl:) It should now be apparent that an electric field will appear within the capacitor whenever a potential difference is applied to the plates. At the same time, a positive charge will appear on one of the plates and an equal (but opposite) charge will appear on the other. The value of the charge present, Q, is: * Directly proportional to the capacitance of the capacitor (the larger the capacitance the larger the charge) * Directly proportional to the voltage between the capacitor plates (the larger the voltage the larger the charge). In fact, the charge on a capacitor is given by: Q = C V Where Q is the charge in Coulomb, C is the capacitance (in Farad) and V is the voltage (in Volts).
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