Given that:(adsbygoogle = window.adsbygoogle || []).push({});

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.

[tex]\begin{array}{l}

P = \frac{1}{2}{V_m}{I_m}\varphi \to \omega = \int_0^t {P\,dt} \\

{\rm{Where: }} \\

{\rm{P = average power, }} \\

{V_m} = {\rm{voltage magnitude, }} \\

{I_m}{\rm{ = current magnitude, }} \\

\omega = {\rm{energy, }} \\

\varphi {\rm{ = power factor(}}\cos ({\theta _v} - {\theta _i})) \\

\end{array}[/tex]

The same thing applies to the formula for the energy contained in an inductor:

[tex]\begin{array}{l}

\omega = \frac{1}{2}L{i^2} \\

{\rm{Where:}} \\

L{\rm{ = inductance}} \\

i{\rm{ = current}} \\

\end{array}[/tex]

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# Energy in AC circuits

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