If an air core inductor has an inductance of 2 µH, what will the inductance become if an iron core is inserted? Assume that the iron core has a relative permeability µ) of 1000.
A) 2000 µH
B) 63 µH
C) 2nH
D) 2 µH

Question

Quizplus · Accepted Answer

The inductance of an inductor increases with the permeability of the core material. The formula for inductance with a core is L = L0 * µr, where L0 is the original inductance and µr is the relative permeability of the core material. Given an original inductance (L0) of 2 µH and a relative permeability (µr) of 1000, the new inductance (L) becomes 2 µH * 1000 = 2000 µH.

If an Air Core Inductor Has an Inductance of 2