Fender Stratocaster Red A electric guitar pickup is actually much like a powerful mike coil. For decades, dynamic microphones have been wired with the voice coil attached with the primary of the microphone's transformer, and maybe not called to surface (‘floating'). The microphone's situation is normally attached to the wire guard, that is linked to the microphone amplifier's ground (see Rane's site for more discussion).
By and large, energetic microphones are extremely calm devices consequently of the mixture of transformer solitude and balanced, flying sign lines during, as well as shielded, humbucking coils.
Therefore why not instruments? Instruments are notoriously plagued by noise. Humbucking pickups are only a partial (though essential!) solution. The obvious alternative is always to float your guitar pickup to a healthy production, being a microphone. A similar idea was published that 2001 patent request like this Fender Stratocaster Red?