Ringo Starr New Song A electric guitar pickup is actually just like a dynamic microphone coil. For many years, dynamic microphones have been sent with the voice coil attached to the principal of the microphone's transformer, and not introduced to floor (‘floating'). The microphone's case is typically attached to the wire guard, which can be attached to the microphone amplifier's soil (see Rane's website for more discussion).
By and big, vibrant microphones are extremely calm products consequently of the combination of transformer solitude and balanced, suspended sign lines during, along with protected, humbucking coils.
So why don't you instruments? Guitars are once affected by noise. Humbucking pickups are only a partial (though crucial!) solution. The most obvious alternative would be to move the guitar collection to a balanced output, just like a microphone. An identical thought was printed this 2001 patent request like this Ringo Starr New Song?