You are a Giant Antenna?! #diy #electronics #voltage #oscilloscope #engineering #antenna

As an experiment, let's see how the voltage of our main's power looks like. It's a beautiful sine wave. Now, I used the probe to see whether I'm a voltage source. H, this looks familiar. But why? First of all, let's get one foundation straight. When current flows through a wire, it creates a magnetic field around it. More current means a bigger field. We induce a voltage when a magnetic field is changing its intensity like it happens with all AC signals. And thus the magnetic field of our mains wires which are all around us inside our walls induce a small voltage onto us because we are basically a big antenna. Uh