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Back to 22.11 More Applications of Magnetism

Integrated Concepts

Avg difficulty 2.5

A current balance used to define the ampere is designed so that the current through it is constant, as is the distance between wires. Even so, if the wires change length with temperature, the force between them will change. What percent change in force per degree will occur if the wires are copper?

OpenStax College Physics 2e, 22.11 More Applications of Magnetism, exercise 28

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Adapted from College Physics © 2022 Rice University. Licensed under CC BY 4.0. Sources: College Physics 2e, College Physics for AP® Courses 2e. Imported at revision f98d7a7.