Fender Zone Bass 5 String A electric guitar pickup is actually similar to a powerful mike coil. For decades, energetic microphones have now been wired with the style coil attached with the primary of the microphone's transformer, and maybe not recommended to surface (‘floating'). The microphone's case is typically linked to the cable shield, which will be connected to the microphone amplifier's ground (see Rane's website for more discussion).
By and big, dynamic microphones are extremely calm units consequently of the combination of transformer solitude and balanced, flying indication lines throughout, as well as guarded, humbucking coils.
Therefore why not guitars? Guitars are once overwhelmed by noise. Humbucking pickups are only an incomplete (though crucial!) solution. Well-known option is to float practicing the guitar pickup to a balanced productivity, just like a microphone. A similar thought was printed this 2001 patent program like this Fender Zone Bass 5 String?