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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 ## Conductors and Insulators ## Basic Circuit Symbols ## Voltage and Current ## Resistance ## Ohm's Law ## Worksheet: Ohm's Law ## Energy and Power ## Examples: Electricity * Electronic Principles * 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 Basic Circuit Symbols<^< Conductors and Insulators | Course Index | Voltage and Current >^>(:nl:) We shall shortly be introducing some essential concepts of electronic circuits. However, before we do, this is a good point to make you aware of four of the most common electronic components: resistors, capacitors, inductors and batteries. We shall explain each of these components in much more detail later but, in the meantime, you should check out whats bellow to find out what you need to know now! >>frame round<<Resistors Resistors provide us with a means of accurately determining the voltage and current present in a circuit. In simple terms, resistors oppose the flow of current in a circuit - the higher the resistance the smaller the current.
>>frame round<<Capacitors Capacitors are simply reservoirs for storing electric charge. The larger the value of capacitance the greater the electric charge that will be stored when a given voltage is applied. Note that electric fields are produced by voltage.
>>frame round<<Inductors Inductors provide us with a means of storing electrical energy in the form of a magnetic field. The larger the value of inductance the greater the magnetic flux that will appear when a given current is applied. Note that magnetic fields are produced by current.
>>frame round<<Batteries Batteries are a source of electrical energy. A battery normally consists of a number of cells connected in series to produce a particular voltage. Here four 1.5 V cells are connected in series to produce an electromotive force (or e.m.f.) of 6 V (the other two batteries can not be seen on the photograph as they are underneath the top two). When a battery is connected to a circuit of given resistance, the larger the value of voltage, the greater the value of current that will flow.
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