I'm looking for a physical interpretation of the Poynting Vector. I understand that it should be thought of as an energy flow due to the electromagnetic field, but would I be correct in saying that in ...
Can we draw analogy between em power flow through free space and ac power flow through a transmission line?
Knowing that the free space has a characteristic impedance (which is purely resistive, measured in ohms) I was wondering if I can model the free space as an infinitely long transmission line- ...
How should I compute the amount of energy of an EM wave absorbed in the material? Can I just use the divergence times the Poynting vector?