I know, I know, not everyone loves science class. Or math class. Or social studies. Or school. I for one did look forward to science class. Ironically my least favorite class was English. Hated all that writing and sentence structure stuff.
I always found electricity fascinating and have found I have a knack for understanding wiring concepts. Don't get me wrong, I am not by any stretch an electrical engineer or even close to being an electrician. I just have an easy time with many of the concepts.
For example, the rudimentary lesson in science class on how a circuit works. The very label "circuit" should be a clue. Of course to a 10 year old kid's brain, especially one who hates language class, the clue is lost like a pebble on a beach. Electricity flows in a circle. When something is placed into the flow, like a light bulb, that thing responds. We have light!
One of the experiments in class was to place one piece of wire on both ends of the battery (This would probably be deemed to "dangerous" today). What occurs quite quickly is that the wire gets very hot. This is a short circuit. The simplified reason for this happening is the lack of a light bulb or any electrically driven device somewhere in the circuit. Like water running down a hill, placing a dyke (light bulb) into the torrent slows down the flow. The same is true with the flow of electricity. An unchecked flow of excited electrons (called low impedance) creates heat. When this happens in a house wire, the circuit breaker trips.
During a recent home inspection, while looking over the electric panel, I saw that several circuit breakers were tripped. This being a foreclosed property that had just been de-winterized, I reasoned the circuits had not been turned on. Flipping the first breaker on, it loudly BUZZZZZZED and clicked off, just like it should when there is a short circuit. This of course is a red flag
Later while inspecting the kitchen, I noticed the range hood was gone, the wiring left dangling like a twisted vine from the wall. Looking at the capped wires I saw that the person who was so safety conscious apparently wasn't cognizant of very basic electricity. The two circuit wires, the feed (black) and neutral or return (white) had been wire capped together. Like the wire on both ends of the battery, this creates a short circuit and explained the circuit breaker's response.
Looks to me like someone hated science class as much as I hated English class.