Is the Poynting Vector Field the Only Factor in Energy Flow in …
Sep 20, 2023 · The discussion centers on the role of the Poynting vector field in energy flow within electrical circuits, specifically contrasting its implications for resistors and LEDs. …
Understanding the Poynting Vector Dilemma in Electrical Circuits
Aug 18, 2009 · Notably, the Poynting vector calculations demonstrate that energy flows into conductors, despite the absence of oscillating fields in DC scenarios. Resources such as the …
Poynting Vector in a Wire: Understanding the Flow of Energy
May 16, 2018 · The discussion centers on the Poynting vector in a wire, specifically how energy flows into the wire from external fields despite the static nature of the electric and magnetic …
Question on Poynting Vector calculation in wire.
Jan 16, 2011 · This start out as an example in the book: Find Poynting Vector of a long conducting wire with radius = b and conductivity \\sigma with DC current through the wire. …
Understanding the Poynting Theorem - Physics Forums
Jan 18, 2025 · Relevant Equations: Poynting Theorem. Second question: Is ∇⋅S the net energy flux passing a point? What does the term −J⋅E represent? I know that J⋅E is the work done by …
How does the Poynting vector factor into a normal circuit?
Jan 15, 2017 · The Poynting vector, defined as the cross product of electric and magnetic fields, indicates energy flow, while Ohm's law remains a valid classical description of current …
Help with electromagnetics: the Poynting Vector and Ampere ...
Jan 3, 2022 · The discussion centers on the apparent contradiction between the Poynting vector's divergence and the magnetic field behavior in a steady-state DC current-carrying wire. It is …
Poynting vector of current carrying wire • Physics Forums
Dec 30, 2017 · The discussion focuses on calculating the Poynting vector for a long straight wire of radius a and resistance per unit length R carrying a constant current I. The Poynting vector …
Oct 4, 2014 · The fundamental electromagnetic principles associated with the transfer of power from the primary to secondary windings of a transformer are considered. This power flow is by …
Finding time average Poynting vector - Physics Forums
Mar 7, 2009 · Explore time-averaging methods for sinusoidal functions in physics Investigate the relationship between E and B fields in electromagnetic waves Physicists, electrical engineers, …