Do magnetic fields have any effect on dielectric breakdown

AI Thread Summary
Magnetic fields do not significantly affect the dielectric breakdown of insulators, such as air, under practical conditions. While a magnetic field can generate electric fields, they are not strong enough to influence dielectric breakdown effectively. The energy required to create a sufficiently strong magnetic field to make a difference is typically impractical. However, magnetic breakers utilize magnetic fields to redirect electric discharges, increasing the path length and effectively extinguishing arcs. Overall, the impact of magnetic fields on dielectric breakdown remains minimal in practical applications.
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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?
 
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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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