David Roberson wrote: > It appears to me that they have most of the possible current levels > covered. Why list ranges that include each other?
Agreed. Highly redundant. > > Magnetic fields that are changing in magnitude or direction generate > electric fields that can impart energy upon charged particles. A steady > magnetic field is not able to supply energy to these charged objects, but > can change their direction of motion. Yes. Once established the large current densities generate huge magnetic fields circulating the current flow, or equivalently a magnetic vector potential field pointing in current flow direction. If the current suddenly stops, oppositely charged particles oppositely moving in the plasma flow collide in energetic "compressions." BTW, an interesting paper illustrating how powerful these fields can get in nanocircuits is - "Optical generation of intense ultrashort magnetic pulses at the nanoscale" http://arxiv.org/abs/1303.6072 It would be interesting to quantify the momentum/energy impulses charged particles around the currents receive. -- LP > > Dave > [...]
