a 70-cm solenoid is wound 5 000 times around an aluminum rod with a radius of 0.50 cm. Calculate the flux in the solenoid if a 3-A current is supplied to it. (the relative permeability of aluminum is 250

a 70-cm solenoid is wound 5 000 times around an aluminum rod with a radius of 0.50 cm. Calculate the flux in the solenoid if a 3-A current is supplied to it. (the relative permeability of aluminum is 250

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 64P: A solenoid with an iron core is 25 cm long and is wrapped with 100 turns of wire. When the current...

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Concept explainers

Ferromagnetism

Ferromagnetism is a mechanism by which some materials show magnetic properties. Iron and magnetite, an oxide of iron, are two naturally occurring materials that show the property of ferromagnetism. The word ferromagnetism is derived from the Latin name of iron, "Ferrum" as it was the first observed material to show such property. The property of ferromagnetism is shown by only a few substances such as iron, nickel, cobalt, and their alloys. Some transition metals and alloys of rare-earth metals also show ferromagnetism.

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