1. Nov 3, 2011 #1

   redredred

   

   Can someone help me intuitively understand why if a field has zero curl then it must be the gradient of a scalar potential?
   
   Thanks!

    

   redredred, Nov 3, 2011
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3. Nov 4, 2011 #2

   lavinia

   

   Science Advisor

   Gold Member

   2017 Award

   If the curl is zero the field does not rotate so the field lines look like gradient flows.

    

   lavinia, Nov 4, 2011

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