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  1. #1 current 
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    In which year does current invented?And which one first invented AC or DC?


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    Cooking Something Good MacGyver1968's Avatar
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    It wasn't invented, it was discovered. DC came first with the first batteries. I believe the earliest example is the Baghdad Battery. Baghdad Battery - Wikipedia, the free encyclopedia somewhere around 250 bc.


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    Brassica oleracea Strange's Avatar
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    I can't think of any way in which AC could occur in nature.

    The first DC generator was built by (the wonderfully named) Hippolyte Pixii in 1832. [http://en.wikipedia.org/wiki/Electric_generator]

    Practical AC generators were not built until the 1880s/90s [http://en.wikipedia.org/wiki/Alternator]
    Without wishing to overstate my case, everything in the observable universe definitely has its origins in Northamptonshire -- Alan Moore
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    Cooking Something Good MacGyver1968's Avatar
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    Hippolyte Pixii
    "Mac, would you like a Hippo?"
    "Naw...I'm on a diet...I'll take a Hippolyte"
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  6. #5  
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    YES MacGyver1968 I also heard that battery was discovered first in 1800.but dont known about AC and DC.
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    Cooking Something Good MacGyver1968's Avatar
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    Quote Originally Posted by sabari raja View Post
    YES MacGyver1968 I also heard that battery was discovered first in 1800.but dont known about AC and DC.
    Yes...the first modern batteries were created in the 1800's. The makers of the Baghdad battery probably didn't have any knowledge of what was going on with their device...they only saw how it worked. You can make DC with an acidic fruit like a lemon and a copper and steel anode and cathode. AC came much later....Making AC requires much more technology to vary the current between positive and negative.
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    Quote Originally Posted by MacGyver1968 View Post
    Yes...the first modern batteries were created in the 1800's. The makers of the Baghdad battery probably didn't have any knowledge of what was going on with their device...they only saw how it worked.
    The "Baghdad Battery," while an intriguing object, wasn't a battery. That was a sensational misinterpretation by some guy around 1940. There's no evidence of ancient electroplating, so that couldn't have been the purpose of such a thing. More dispositive is that the construction of the "battery" precludes making external connections to one of the putative electrodes. Hard to use a battery with only one terminal.

    So the prize goes to Alessandro Volta, 1800.
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    Cooking Something Good MacGyver1968's Avatar
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    Thanks Tk for the update...I don't want to give out bad data.
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    Quote Originally Posted by MacGyver1968 View Post
    Thanks Tk for the update...I don't want to give out bad data.
    I thank you for pointing me to the wiki article. It has been modified a lot since I last looked at it years ago, and now includes the informative bit about Mythbusters doing a show on it. They scaled it up to heroic proportions, apparently. I'll have to go hunt down the episode. So, thanks again!
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