Ernie Ball Slinky A guitar pickup is actually just like a powerful mike coil. For decades, vibrant microphones have been wired with the style coil attached with the principal of the microphone's transformer, and perhaps not referenced to ground (‘floating'). The microphone's event is typically attached to the cable shield, which is connected to the mike amplifier's soil (see Rane's site for more discussion).
By and large, powerful microphones are very calm products as a result of the combination of transformer isolation and healthy, suspended transmission lines during, as well as protected, humbucking coils.
Therefore why don't you guitars? Instruments are once affected by noise. Humbucking pickups are only a partial (though important!) solution. The most obvious answer would be to move the guitar pickup to a healthy result, just like a microphone. An identical thought was printed this 2001 patent application like this Ernie Ball Slinky?