Alternating Current vs Direct Current - Physics Forums
Jun 14, 2006 · Alternating Current (AC) flows in both directions, switching direction 60 times per second in the U.S., while Direct Current (DC) flows in one direction only. AC is preferred for long-distance …
Varying Direct Current and Alternating current - Physics Forums
Jul 23, 2015 · So, @William White, according to you, for varying direct current, the current can't be negative basically, but can be in alternating current? And to answer your question, it would be DC I …
Why does the IEEE recommend using ac and dc instead of AC and DC?
Feb 12, 2014 · I was a little surprised to find out that the IEEE recommends using "ac" and "dc" for alternating/direct current rather than "AC" and "DC." (Google...
Why Most Appliances Require Alternating Current - Physics Forums
Aug 10, 2009 · I understand the basic difference between "direct current" and "alternating current", but can someone explain to me why most appliances require the use of alternating current (that is why …
Thermal Energy Dissipated in a Resistor in AC vs DC
Nov 7, 2009 · Homework Statement What direct current will produce the same amount of thermal energy, in a particular resistor, as an alternating current that has a maximum value of 2.60 A? …
Alternating current and Direct current? - Physics Forums
Jun 8, 2012 · I have this Question about toaster and electric kettle and I just want to know if they are working on alternating current or direct current. Does a Toaster works on alternating current or direct …
Why Is Alternating Current Preferred for Long-Distance Power ...
Sep 23, 2012 · Why is an alternating current used for long distance transmission of electrical power ? What about direct current ?
Alternating Current, live and neutral wires - Physics Forums
Nov 5, 2016 · Hi there, I am a teacher and will be teaching the topic of alternating current soon. I have not taught this before and have certainly not studied this in many years so I am trying to get a full …
SI Notation for Direct Current and Voltage Direct Current - Correct ...
Dec 2, 2010 · Hi, Looking for the SI Notation practices for Direct Current and Voltage Direct Current. We commonly use DC and VDC, but I wonder if that's correct per...
How capacitor blocks dc current? - Physics Forums
Jan 15, 2010 · hello Capacitors are widely used in electronic circuits to block the flow of direct current while allowing alternating current to pass,how it does the...