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Do magnetic fields have any effect on dielectric breakdown

  1. Apr 16, 2013 #1
    Would a magnetic field have any effect on the dielectric breakdown of insulators? For example, the dielectric breakdown of air is 3 Mega volts per meter at a gap of one meter; if you applied a magnetic field to that breakdown, would it help guide the electrons along the path and therefore reduce the amount of power needed to cause the dielectric breakdown or would it have no effect? Or just require too much power to generate a magnetic field strong enough to make a difference?
     
  2. jcsd
  3. Apr 17, 2013 #2
    No, no significant effect for any practicable system. You can generate electric fields from varying magnetic field but not strong enough to cause electric breakdown for this system.

    However magnetic breakers use magnetic fields to curve the path of an electric discharge in air, making the path longer and breaking the arc.
     
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