eli5 What exactly is the energy that flows through the EM field in a circuit?


So I’ve spent the last hour trying to understand Electric fields (keep in mind this has nothing to do with work, I just fell down an internet rabbit hole). What I’m struggling to understand is: what is the energy that flows through the Electric field generated by a circuit?? It’s not a particle right? The electrons generating the magnetic field stay inside the circuit. Is there a specific speed or something that the energy flows through the electric field from point A to B, or is it dependent on the current? Please explain from 0, I’m totally new to this

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2 Answers

Anonymous 0 Comments

Congratulations! You’re already looking at the issue from the easier side to figure out 🙂

See my explanation from last week:

byu/Voxmanns from discussion

You’ll probably still have a follow up question after reading that, as I explained it from the electrical current side, not the field side.

Anonymous 0 Comments

Just as a particular drop of water does not need to travel the length of the whole hose to transfer water pressure instantaneously from one end to the other, individual electrons move very slowly compared to the impulse they convey.

Electrons pass electric energy from one to atomic shell to the next at close to the speed of light. As the electric impulse flows, it excites a magnetic field around the conductor that transmits the impulse.