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Why is it advantageous to use vectors D and A in problems?

  1. May 9, 2015 #1
    At the moment we are working through problems in Griffiths' Electrodynamics textbook and it got me thinking...

    In magnetostatics we have the magnetic vector potential A and in the use of dielectrics problems we have the vector D. Why is it advantageous to use these vectors and not just stick to using B and E?
  2. jcsd
  3. May 9, 2015 #2

    Simon Bridge

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    Try it and see.
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