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![[Post New]](/templates/default/images/icon_minipost_new.gif) 20 Jul 2008 20:45:09 IST
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why do electric field originate from a positive charge?
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There's reason for everything which happens, the challenge is to discover them if you can. |
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20 Jul 2008 21:02:04 IST
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bcoz if field lines were to go inside a positive charge instead of coming out of it then a test charge (which is a positive charge) will get attracted towards the positive charge which will be wrong as it shud get repelled.
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20 Jul 2008 21:13:28 IST
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Electric field lines are hypothetical and its a convention to say that they originate from +ve and terminate at -ve and test charge is +ve.
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The direction field lines by definition is direction of force on positive test charge. As force on this charge is away from a positive charge (repulsion) the field lines appear to come out from positive charge)
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Krishna Gopal Singh
B.Tech Chemical Engg
IIT Delhi 2002
Currently doing PhD from IIT Delhi |
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