mentalindustries Share Posted April 21, 2007 As the topic Are batteries such as AA and AAA AC or DC power? Thanks Link to post Share on other sites
exit Share Posted April 21, 2007 As the topicAre batteries such as AA and AAA AC or DC power? Thanks I dont know of any batterys that are AC and all batterys are DC Link to post Share on other sites
Stetson Share Posted April 21, 2007 They are DC. AC power cannot be stored in the same way. Link to post Share on other sites
P!P Share Posted April 21, 2007 DC. DC is actually the "better" way for power. Edison wanted everything to be DC. The other reason everything isn't DC is because it's hard to send DC power long distances. So we're stuck with these bulky, boxy AC to DC converters ;) Link to post Share on other sites
mentalindustries Author Share Posted April 21, 2007 Cool thanks for the super speedy relies Link to post Share on other sites
Diffused Mind Share Posted April 22, 2007 it's hard to send DC power long distances. Then why are long haul power lines DC? Link to post Share on other sites
noroom Share Posted April 22, 2007 Then why are long haul power lines DC? Source? Link to post Share on other sites
P!P Share Posted April 22, 2007 Source? "AC systems overcame the limitations of the direct current system used by Thomas Edison to distribute electricity efficiently over long distances." Source: http://en.wikipedia.org/wiki/Alternating_current Link to post Share on other sites
gdodson Share Posted April 22, 2007 DC is used for longer distances in the form of HVDC and AC is used for shorter distances. The main reason HVDC isn't used for all transmission is that over a shorter distance, the cost of the inverters is still greater than the cost of the power lost through AC transmission. Link to post Share on other sites
noroom Share Posted April 22, 2007 "AC systems overcame the limitations of the direct current system used by Thomas Edison to distribute electricity efficiently over long distances."Source: http://en.wikipedia.org/wiki/Alternating_current No, I was asking for the source to the following statement: "Long Haul Power lines are DC", made by Diffused Mind. Link to post Share on other sites
P!P Share Posted April 22, 2007 No, I was asking for the source to the following statement: "Long Haul Power lines are DC", made by Diffused Mind. Oops, sorry. Well, there's my source. lol. Link to post Share on other sites
Nicholas-c Veteran Share Posted April 22, 2007 DC because electrons only move one way + and - however in AC the live pin switches on and off as does the other one :p Link to post Share on other sites
SimGuy Share Posted April 22, 2007 I know for a fact that in Quebec, their power transmission grid utilizes DC. So it is very possible to transmit electricity by way of DC instead of AC. :) Just that AC has usually been the defacto standard for power transmission & distribution grids. Link to post Share on other sites
Edrick Smith Share Posted April 22, 2007 Supposedly back when he was trying to prove his point he would take a animal and shock it with DC and then AC to show the difference. Don't remember where I heard that from quite possible it's just a rumour. Link to post Share on other sites
[bear] Share Posted April 22, 2007 The problem with DC is that it is difficult to change voltages to suit the needs of everything in a house without losing efficency. If we went with DC every house would have a huge generator outside and it would be very inefficent. Thankfully tesla got his way. Hooray for electrical engineers. I'm studying to get my degree in electrical engineering right now. :-D Link to post Share on other sites
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