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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 ## Fundamental Units ## Derived Units ## Electrical Units ## Multiples / Sub-multiples ## Examples: Units and Multiples * 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 Examples: Units and Multiples<^< Multiples / Sub-multiples | Course Index | Electricity >^>(:nl:) >>frame round<< Example 1: An indicator lamp requires a current of 0.075A. What is this current when expressed in mA? >><<
>>id=example1 class=question margin=10px frame round<< We can express the current in mA (rather than in A) by moving the decimal point three places to the right. Hence 0.075A is the same as 75mA. >><< >>frame round<< Example 2: A medium wave radio transmitter operates on a frequency of 1,495kHz. What is its frequency expressed in MHz? >><<
>>id=example2 class=question margin=10px frame round<< To express the frequency in MHz rather than kHz we need to move the decimal point three places to the left. Hence 1,495kHz is equivalent to 1.495MHz. >><< >>frame round<< Example 3: A capacitor has a value of 27,000pF. What is its value expressed in µF? >><<
>>id=example3 class=question margin=10px frame round<< To express the value in µF rather than pF we need to move the decimal point six places to the left. Hence 27,000pF is equivalent to 0.027µF (note that we have had to introduce an extra zero before the 2 and after the decimal point). >><<(:nl:)(:table style="clear:both":)
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