The device to which you are refering is probably some sort of fariday cage a very common and well known device that can limit the proporgation of electromagnetic feilds. Such a device has been known about for years so it is probably the alplication of it that is the new product of your company. Basically with stray EM feilds running everywhere from electrical devices there is an increase in power outage by inductance. Put basically and electricity moving through a wire makes a feild and and wire can then be used to draw power from that feild, so you get energy waisted.

Need any more help or description let me know :)

Of course, there is the dual nature of light (particle vs wave) so your EMP might have photons. But photons have zero mass. They have only relativistic mass.

So, you could say your EMP has an “equivalent” mass, based on relativity. Use e=mc^2 to find the equivalent mass. But that would require an energy-to-mass conversion. Dont try that at home.

If you abbreviate “electromagnetic field” as EMF, thats OK but its a less common usage. Lets agree on that usage for this discussion.

“Electromagnetic field” is a more general term. EMP is just an EMF that lasts for a very brief time. The idea is that if you compress an EMF in the time domain, the pulse carries a greater amount of energy in a shorter time. It can therefore induce momentary high peak currents in any conductor is propagates over. Unintentional high peak currents can cause damage.

We live with EMP’s all the time. Every time I flip a light switch, or crank my car’s starter motor, or lots of other things. The question is, how much ENERGY is in that EMP as it departs. When it arrives at my neighbor’s house, its significantly diminished.

The largest EMP’s are generated with nuclear warheads. Those can travel 100s of miles and fry electronics along the way. For you to make an EMP in your garage with enough energy to do damage, thats not easy. I’ve done it.

just kidding…I don’t speak that language.