- #1
cak942
- 5
- 0
I was curious about how exactly energy was transferred in electrical circuits because all my texts were inadequate. After pouring through many sources ("electrical energy transfer" or anything similar yields crappy results through every search engine I tried) I finally found something I could buy: The energy is transferred through electromagnetic waves OUTSIDE of wires.
After researching Poynting's Theorem and vectors and trying to figure out exactly how the energy is sent and received, I ran across an issue with this theory.
A steady-state DC current has no accelerating charges (assuming the circuit has been closed for some time), no oscillating electric fields, and no oscillating magnetic fields. How can energy be transferred through electromagnetic waves if there is no reason those waves should be there?
And if the answer is that energy isn't, then how the heck is it transferred??
After researching Poynting's Theorem and vectors and trying to figure out exactly how the energy is sent and received, I ran across an issue with this theory.
A steady-state DC current has no accelerating charges (assuming the circuit has been closed for some time), no oscillating electric fields, and no oscillating magnetic fields. How can energy be transferred through electromagnetic waves if there is no reason those waves should be there?
And if the answer is that energy isn't, then how the heck is it transferred??