1. The problem statement, all variables and given/known data A family built a cabin directly under a 138kV, 60 Hz alternating voltage power line in the countryside. They assembled a huge coil under the cabin roof intending to tap off electrical energy from the overhead power lines (no wires are attached to the power lines) a) How feasible is this technique to supply energy to the cabin? b) Would this method (if it worked) reduce the transmitted power to its destination? Is this theft? c) Discuss potential hazards the family might face with these conditions 2. Relevant equations None? It seems moreso a communication question than a calculation question. 3. The attempt at a solution a) I am really lost on this question, but here's my thought so far. The power lines have current through them, so it produces an electric field. This will somehow effect the coil they installed by inducing a current in it, and thus allowing them to tap off energy. But wires aren't attached to the power lines, which makes me doubt my thinking.. So as for how feasible the technique is, I would probably say it's not very feasible at all, since even if they were able to tap some energy, it wouldn't be enough to supply their needs. Oh, and I also thought of this too: since it's an AC, it would mean the the field oscillates back and forth as a sine wave, so would the coil would experience even less effects?... b) If the technique worked, I would assume that it WOULD reduce the transmitted power. And I did a bit of reading on power theft, and apparently tampering with power lines in any way is considered theft, so I guess that answers the second part of the question c) There's this part in our textbook that says that "even very low exposure to EMR has detrimental long-term effects on health. Extremely low-frequency EM fields can disturb the production of the hormone melatonin and might even be a factor in the occurrence of sudden infant death syndrome. Children exposed to this may also be at a higher risk of leukemia. It may also cause increased estrogen levels in adults, which is linked with estrogen-sensitive cancers like breast cancer." So I guess that pretty much answers this question, though I may still research a bit more on it. Part c) is the only one I'm confident about at this point, so it'll be great to have some input concerning a) and b), especially a).