Guitar World Store Locations A electric guitar pickup is essentially just like a dynamic microphone coil. For decades, active microphones have now been sent with the voice coil attached to the primary of the microphone's transformer, and not recommended to surface (‘floating'). The microphone's event is typically attached to the wire guard, which is attached to the microphone amplifier's floor (see Rane's site for more discussion).
By and large, active microphones are very calm devices as a result of the mix of transformer isolation and healthy, flying transmission lines throughout, along with protected, humbucking coils.
Therefore you will want to instruments? Instruments are notoriously overwhelmed by noise. Humbucking pickups are only an incomplete (though important!) solution. The most obvious answer would be to move practicing the guitar pickup to a healthy production, just like a microphone. A similar idea was printed this 2001 patent application such as Guitar World Store Locations?