Conditions for a E field to be possible

  1. If I want to verify an electric field E is possible in free space, do I just need to check ∇xE =0?
     
  2. jcsd
  3. WannabeNewton

    WannabeNewton 5,862
    Science Advisor

    In free space what always has to hold is ##\vec{\nabla}\cdot \vec{E} = 0## whereas ##\vec{\nabla}\times \vec{E} = 0## only holds in electrostatic systems. Is your system electrostatic?
     
  4. Yes, the system is electrostatic.
     
  5. WannabeNewton

    WannabeNewton 5,862
    Science Advisor

    Then yes you have to check that the electric field is irrotational. You also have to check that it is divergence-free.
     
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