How does the inductance of a coil change when the supply frequency increases?

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Remains constant regardless of frequencyReduces as the frequency risesRises as the frequency increasesDrops to zero at higher frequenciesNo effect

Explanation

The inductance of a coil is dependent on the frequency of the supply. As the frequency increases, the inductive reactance also increases, which effectively means the coil's inductance appears to increase. Therefore, the inductance increases with an increase in supply frequency.