Energy in AC Circuits: No Frequency Involved

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Energy in AC circuits is distinct from electromagnetic waves, as AC involves alternating current that causes electrons to vibrate in place rather than propagate as waves. The formulas for energy in AC circuits, such as average power and energy stored in inductors and capacitors, do not include frequency because they focus on instantaneous values rather than wave propagation. Electromagnetic radiation occurs when AC flows through wires, leading to energy loss and potential interference with radio signals. This radiation indicates that continuous energy supply is necessary to sustain oscillation in the circuit. Understanding these differences is crucial for grasping the behavior of energy in AC electrical systems.
p75213
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Given that:

E = hν where

E = energy of a photon
h = Planck's constant = 6.626 x 10-34 J·s
ν = frequency

Why is it that the energy (electromagnetic waves) in AC electrical circuits does not include frequency as part of the formula? eg.
\begin{array}{l}<br /> P = \frac{1}{2}{V_m}{I_m}\varphi \to \omega = \int_0^t {P\,dt} \\ <br /> {\rm{Where: }} \\ <br /> {\rm{P = average power, }} \\ <br /> {V_m} = {\rm{voltage magnitude, }} \\ <br /> {I_m}{\rm{ = current magnitude, }} \\ <br /> \omega = {\rm{energy, }} \\ <br /> \varphi {\rm{ = power factor(}}\cos ({\theta _v} - {\theta _i})) \\ <br /> \end{array}

The same thing applies to the formula for the energy contained in an inductor:
\begin{array}{l}<br /> \omega = \frac{1}{2}L{i^2} \\ <br /> {\rm{Where:}} \\ <br /> L{\rm{ = inductance}} \\ <br /> i{\rm{ = current}} \\ <br /> \end{array}
 
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Electromagnetic waves do not propagate in an AC electrical circuit. Alternating Current flows in an electrical circuit. They are not the same, so they are not described by the same formulas.
 
That's what I thought until I read this: http://amasci.com/miscon/whatis2.html#2
The guy says he is an electrical engineer so I figured he must know what he is talking about.
Seems to make sense as the electrons in AC electricity are simply vibrating inplace. As I understand it a vibrating electron will set up an electromagnetic wave.
 
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Energy (Joules) can be stored in electrical circuits only in capacitors (½CV2) and inductors (½LI2). Power (watts) in electrical circuits is given by V·I (real and reactive). Power (watts per m2) in an electromagnetic wave (including waveguides) is given by the Poynting vector \overrightarrow{S} = \overrightarrow{E}\times \overrightarrow{H} (vector cross product).
 
p75213...I think your reference is referring to electromagnetic radiation (radio waves usually) from the wires of the circuit.
Whenever AC flows through a wire there is electromagnetic radiation from the wire. It is this radiation that can cause 'interference' in radio reception etc.
This is an energy loss from the circuit and shows that energy must be continuously supplied to maintain oscillation.
 
I do not have a good working knowledge of physics yet. I tried to piece this together but after researching this, I couldn’t figure out the correct laws of physics to combine to develop a formula to answer this question. Ex. 1 - A moving object impacts a static object at a constant velocity. Ex. 2 - A moving object impacts a static object at the same velocity but is accelerating at the moment of impact. Assuming the mass of the objects is the same and the velocity at the moment of impact...

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