Variable inductance is achieved by the utilization of __________ core in the shape of a rod which is wraped by a hollow coil of wire.

Variable inductance is achieved by the utilization of __________ core in the shape of a rod which is wraped by a hollow coil of wire. Correct Answer Ferromagnetic

As the ferromagnetic core enters the coil the inductance of the coil is replaced. With reluctance sensors, the magnetic flux coupling b/w 2 or more coils is varied by a ferromagnetic core. Inductance is a calculation that relates electrical flux to the current.
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