build a battery with copper wire | Creative Own

In this video, a dry cell battery, a wound copper wire and a few magnets are being used to create what can be described as "train". It looks fascinating but how does this experiment work? The trick in the video is that the magnets are made of a conducting material and they connect the battery terminals to the copper wire, so the battery, magnets and copper wire make a circuit that generates a magnet field just in the vicinity of the battery. The geometry means the two magnets are automatically a

Explore the relationship between electricity and magnetism by building a homopolar motor. | Bearded Science Guy

You can make a simple motor at home with just three items! Alex Dainis shows you how to make a homopolar motor at home and explains how the physics in this motor is similar to those being used in electric cars! #ElectricCars #DIY #Physics #Science | Museum of Science, Boston