An air-filled cylindrical inductor has 3100 turns. It is 2.6 cm in diameter and
ID: 1322417 • Letter: A
Question
An air-filled cylindrical inductor has 3100 turns. It is 2.6 cm in diameter and 28.5 cm long.
(a) What is its inductance?
H
(b) Assume a second cylindrical inductor with the same length and diameter as the first, but with only 180 turns and a core filled with a material instead of air. If the second inductor has the same inductance as the first, what is the magnetic permeability of the material filling the second inductor relative to that of free space? That is, what is ?/?0 for this material?
Explanation / Answer
L =
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