The Science Forum - Scientific Discussion and Debate
		Live Chat    FAQ    Search    Usergroups
	Register  ::  Log in	Log in to check your private messages
	Science Forum Forum Index » Electrical and Electronics  » Frequency of polarity changes  Frequency of polarity changes « View previous topic :: View next topic »  Author Message zippo Posted: Thu Feb 04, 2010 6:11 pm    Post subject: Frequency of polarity changes New Member Joined: 04 Feb 2010 Posts: 1 The question is what makes voltage current flow back an forth? also how fast can it switch. i know that standard ac in the U.S. changes 60 time a sec. But would it be possible for it to alternate 1000 times per sec or even 100,000? Thanks zippo Back to top Harold14370 Posted: Fri Feb 05, 2010 7:56 am    Post subject: Moderator Joined: 13 Apr 2007 Posts: 3061 Location: Pennsylvania Well, radio frequencies are much higher. But for transmission of power, you would run into problems by making the frequency too high. The power cables have inductance and capacitance which cause the cable impedance to change with frequency. Essentially, it would become harder to push the current out over the wires. Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First     Page 1 of 1 Science Forum Forum Index » Electrical and Electronics  » Frequency of polarity changes Jump to: Select a forum Natural Sciences----------------MathematicsPhysicsChemistryBiologyHealth & MedicineBehavior and Psychology Environmental IssuesEarth SciencesAstronomy & Cosmology  Engineering and Technology ----------------Mechanical, Structural and Chemical Engineering Electrical and Electronics Computer ScienceMilitary Technology  Social Sciences ----------------HistoryScientific Study of ReligionPhilosophy EducationPoliticsBusiness & EconomicsCriminology and Forensic Science The Science Forum----------------General DiscussionIntroductionsIn the NewsScience-Fiction and Non-FictionArt and CultureNew Hypotheses and IdeasPseudoscienceLinks Site Administration----------------Site FeedbackTrash Can  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
	Enter your search terms Submit search form   Web www.thescienceforum.com © 2004-2010 Thescienceforum.com Sponsored by EnluxLED Partner Forums Politics Forum  Radar Detector