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Electric field lines

  1. Dec 29, 2011 #1
    Can we have E and B field lines from 2 different sources cross. I don't think we can because then a charged particle traveling through the field would have 2 possible paths after reaching the intersection point. But then what if we have induced E fields and other sources. But IM guessing that the overall total field will reach equilibrium and the field lines will have a nice flow.
     
  2. jcsd
  3. Dec 29, 2011 #2

    Doc Al

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    Why would it have 2 possible paths?
     
  4. Dec 29, 2011 #3
    If I had 2 E field lines cross at say right angles, when I draw the field lines, If an electron came to this crossing how would it know which way to go. Which E field line would it follow if there were 2 branching out?
     
  5. Dec 29, 2011 #4

    Doc Al

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    Ah... I misread your post. I thought you were asking about E and B lines crossing each other.

    If you have multiple sources of E field, the resultant field will not have lines crossing.
     
  6. Dec 29, 2011 #5

    HallsofIvy

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    The crucial word there being "resultant"- the sum of the vector fields of the different forces, not the field lines of the separate sources themselves. Those may well cross.
     
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