SECTION 14.5. HEAD MATERIALS AND THEIR APPLICATIONS 163
on the instantaneous fields of the media, and hence is independent of the media velocity
or the time rate of change of the fields. This offers a significant advantage for reading
low-velocity media. Here, we recall that the sensitivity of inductive reading is strongly
dependent on the relative velocity between head and medium, since this type of recording
is based on Faraday‘s law (see Section 14.5.1).
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