Question: An air-filled cylindrical inductor has 2800 turns, and it is 2.5cm in diameter and 28.2 cm long. (a) What is its inductance? (b) How many

An air-filled cylindrical inductor has 2800 turns, and it is 2.5cm in diameter and 28.2 cm long.
(a) What is its inductance?
(b) How many turns would you need to generate the same inductance if the core were iron-filled instead? Assume the magnetic permeability of iron of about 1200 times that of free space.

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