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1) Poyting vector is not discussed in many
introductory physics courses. Is this a serious
omission and a source of misconceptions?
2) Consider a purely ohmic load which is heated.
It is clear that energy must enter somehow into the
load. It arrives through the space surrounding wires
and goes into the load. How does this happen?
Suppose the load is a high R wire perpendicular to
the energy-guiding wires (see below). Near that
load the Poyting vector is directed everywhere into
the load. The energy of the field "enters the metal"
and is dissipated in it. Is this a correct explanation?