Curly 951 Posted December 17, 2014 Found a neat video of a AA battery and some magnets being used to make a "train". I haven't quite figured out how it works, but it is fun to watch. Curly Share this post Link to post Share on other sites
ob1jeeper 520 Posted December 18, 2014 Appears to be the result of opposing forces created by a magnetic field… Share this post Link to post Share on other sites
Curly 951 Posted December 18, 2014 Appears to be the result of opposing forces created by a magnetic field… That is what I was thinking, but that small battery sure amplified the magnet field of those magnets. I realize the coil also helped increase the field. Anyway, fun to watch. Curly Share this post Link to post Share on other sites
Goose 6 Posted December 19, 2014 What's happening here is that the magnets are acting as conductors between the battery and the wire, thus creating a circuit. Since there's no resistor in the circuit it's essentially a short, so the current is very high (as much as the battery can supply). The high current through the coiled wire makes a strong magnetic field, which puts a force on the magnets. This is the same concept as a solenoid. Share this post Link to post Share on other sites
Number7 87 Posted December 19, 2014 What's happening here is that the magnets are acting as conductors between the battery and the wire, thus creating a circuit. Since there's no resistor in the circuit it's essentially a short, so the current is very high (as much as the battery can supply). The high current through the coiled wire makes a strong magnetic field, which puts a force on the magnets. This is the same concept as a solenoid. Egg head. G Share this post Link to post Share on other sites
91AzXJ 2 Posted December 20, 2014 What's happening here is that the magnets are acting as conductors between the battery and the wire, thus creating a circuit. Since there's no resistor in the circuit it's essentially a short, so the current is very high (as much as the battery can supply). The high current through the coiled wire makes a strong magnetic field, which puts a force on the magnets. This is the same concept as a solenoid. I was going to say that but I knew George would make fun of me so I just said Cool! Share this post Link to post Share on other sites
dzJeepChic 2,517 Posted December 24, 2014 Even funnier because my view was preceded by a Poo-Pourri ad! Share this post Link to post Share on other sites
