Flatwound Bass Strings 5 String A electric guitar pickup is basically just like a dynamic mike coil. For decades, active microphones have already been wired with the voice coil attached to the principal of the microphone's transformer, and maybe not referenced to floor (‘floating'). The microphone's case is typically connected to the wire guard, that is attached to the mike amplifier's soil (see Rane's site for more discussion).
By and large, energetic microphones are very calm units consequently of the mixture of transformer isolation and healthy, floating indication lines during, in addition to protected, humbucking coils.
So why not instruments? Instruments are once overwhelmed by noise. Humbucking pickups are merely a partial (though crucial!) solution. Well-known option would be to float the guitar pickup to a healthy production, being a microphone. An identical strategy was published this 2001 patent software like this Flatwound Bass Strings 5 String?