A high power line carries a current of 4.7 kA. What is the strength of the magnetic field this line produces at the ground, 7.25 m away? (μ0 = 4π × 10-7 T ∙ m/A). Express your answer in milliTeslas.

A high power line carries a current of 4.7 kA. What is the strength of the magnetic field this line produces at the ground, 7.25 m away? (μ0 = 4π × 10-7 T ∙ m/A). Express your answer in milliTeslas.

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter24: Magnetic Fields

Section: Chapter Questions

Problem 11STP

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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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A high power line carries a current of 4.7 kA. What is the strength of the magnetic field this line produces at the ground, 7.25 m away? (μ₀ = 4π × 10^-7 T ∙ m/A). Express your answer in milliTeslas.

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