It is distributed with air gaps to help condense its magnetic field to minimize core losses.
Toroidal powder cores are used in the development of a subgroup of microelectronics known as inductors, transformers and electronic filters.
An MPP core possesses many positive magnetic qualities which makes it more optimal to use in the creation of such devices.
Molypermalloy powder cores are commonly used in the making of: flyback transformers, resonant circuits, quartz filters, loading coils, choke coils, pulse transformers, and other industrial and military circuits.
[2] MPP was developed into cores by the Western Electric Company and the Bell Telephone Laboratory (formerly known as AT&T) in the early 1940s.