Okay, I see this is very simplified, but an instrument consists of more than a strength? Given how many different instruments and voices exist - how many different individual waveforms exist? A flute should have another waveform than a saxophone and my voice is different to that one of your mother.







So how does it work in the US then? Is there a law that everything needs to be isolated very well, no metal shells allowed or people just getting electrocuted from time to time