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Specific magnetic loading is ratio average flux air gap and flux path of air gap:
It is important to have the air gap in a magnetic circuit so that everything works properly. The air gap allows magnetic flux flow to the main source; without it, it would not work properly.
0.55 gap (+/-0.04; which I implore you to try to gauge on a disk gap tool...)
Mainly air gap is necessary in magnetic circuit for two necessary reasons: 1. to prevent saturation 2. to allow an object to move in the magnetic field
why are there interblock gaps on tapes
why are there interblock gaps on tapes
A read gap, a write gap, and two edge erase gaps to produce clean tracks when writing. In early heads all gaps used magnetic coils, most modern ones use a different technology (e.g. magneto resistive) on the read head.
No the dealership can not be sued if they did not offer GAP insurance. The dealership is not required to offer GAP insurance.
To read, there are very small electric coils that sense the magnetic polarization; these coils are mounted on arms which pivot and move across and very close to the surface of the disk. (see the image link under Sources... below) These coils read the polarization which represents the 1's and 0's of the binary information stored on the magnetic disk. The write mechanisms make use of the electricity flowing through a coil in the write head that produces a magnetic field. Electrical pulses are sent to the write head, with different patterns of positive and negative currents. The current in the coil of the write head induces a magnetic field across the gap between the head and the magnetic disk platter, which in turn magnetizes a small area on the recording medium. The Read/Write head assembly works to read and write using basically the same technology, early units used the same hardware for both, modern units can have slightly different configurations of the microscopic gaps between coils and magnets etc. for optimum performance.
A moving iron galvanometer is used to intensify the magnetic field by reducing the length of air gap across which the magnetic flux has to pass.
Gap Junctions
The required plug gap for a 25 hp Johnson outboard is .030 in.