What is the difference between a humbucker and a single coil pickup?
A humbucker consists of two coils usually wound in the same direction however the electrical path to ground travels in opposing directions in each coil and the magnetic polarity is reversed. The humbucker is designed to cancel out 60-cycle hum and has a fatter, richer sound to that of the taller, narrower single coil that can be prone to 50/60 cycle hum.