Make My Own Song Com A electric guitar pickup is essentially similar to a dynamic microphone coil. For decades, powerful microphones have been wired with the voice coil mounted on the principal of the microphone's transformer, and maybe not called to floor (‘floating'). The microphone's case is typically connected to the wire guard, that will be linked to the mike amplifier's surface (see Rane's site for more discussion).
By and large, energetic microphones are extremely calm units consequently of the mix of transformer isolation and healthy, floating sign lines during, as well as shielded, humbucking coils.
So why don't you guitars? Guitars are once overwhelmed by noise. Humbucking pickups are just an incomplete (though important!) solution. Well-known alternative is to move practicing the guitar pickup to a healthy output, just like a microphone. The same thought was printed this 2001 patent application such as Make My Own Song Com?