Wrong. When you connect a light bulb to a battery, energy moves from the battery to the bulb. This is a one-way flow. If this phenomena is examined in great detail, we find that electrical energy is composed of electromagnetic fields. We find that it moves as wave energy, that it exists only outside of the wires, and most importantly, that it TRAVELS ONE WAY ALONG BOTH WIRES on its trip from the battery to the bulb. The energy did not travel in a circle. So, when you plug a lamp into a wall socket, you should not imagine that the AC energy is a mysterious invisible entity traveling back and forth inside the wires. Instead you should think of it as a mysterious invisible flow that comes out of the outlet, runs along the outside of BOTH wires, then dives into the filament of the light bulb.


About Rob W Harrison
There is a part of my mind that stubbornly thinks about science. I have a life, job, wife and family but without my Van Der Graaf Generator life would be incomplete. I am a great believer that this amazing universe came into being through process: movement >pressure > density > mass. Maybe I believe in an non viscous ether. Anyway this is where I can share my thoughts.

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