“My answer about electronics was about E3”
My mistake then, I apologize.
E1 is on the order of 50,000 volts per meter in field strength on the unclassified pulse. Very problematic for electronics.
E3 is on the order of 40 volts per KILOMETER, or .04 volts per meter. This field will not impact any electronics.
However, those field levels can generate a current in the earth hundreds of kilometers deep. This can cause a large current to flow as geologic conditions vary and this is what kills unmonitored and unprotected transformers. E3 does not meaningfully couple to any wires to generate currents.
Thanks for the info. I assume the unclassified E1 number is within the capability of a crude weapon like N. Korea might have if they launch it high enough?