A long copper strip 1.8cm wide and 1.0mm thick is placed in a 1.2T magnetic field. When a steady current of 15A passes through it, the hall emf is measured to be 1.02uV. Determine the drift velocity of the electrons in the coppe

A long copper strip 1.8cm wide and 1.0mm thick is placed in a 1.2T magnetic field. When a steady current of 15A passes through it, the hall emf is measured to be 1.02uV. Determine the drift velocity of the electrons in the coppe

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter25: Electromagnetic Induction

Section: Chapter Questions

Problem 4STP

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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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