Steel Gage Size A guitar pickup is basically similar to a vibrant mike coil. For many years, active microphones have already been sent with the voice coil mounted on the primary of the microphone's transformer, and not referenced to surface (‘floating'). The microphone's situation is usually attached to the wire guard, which can be attached to the microphone amplifier's floor (see Rane's site for more discussion).
By and large, active microphones are extremely quiet devices as a result of the combination of transformer isolation and balanced, flying sign lines throughout, along with guarded, humbucking coils.
So you will want to guitars? Guitars are once affected by noise. Humbucking pickups are only an incomplete (though essential!) solution. The most obvious alternative would be to move practicing the guitar pickup to a balanced production, just like a microphone. A similar strategy was printed this 2001 patent program like this Steel Gage Size?