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Sears and Zemansky's University Physics with Modern Physics | 13th Edition | ISBN: 9780321696861 | Authors: Hugh D. Young; Roger A. Freedman; A. Lewis Ford
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For the same magnetic field strength B, is the energy

Chapter 30, Problem 8DQ

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QUESTION:

For the same magnetic field strength , is the energy density greater in vacuum or in a magnetic material? Explain. Does Eq. (30.11) imply that for a long solenoid in which the current is  the energy stored is proportional to \(1 / \mu ?\) And does this mean that for the same current less energy is stored when the solenoid is filled with a ferromagnetic material rather than with air? Explain.

Equation transcription:

Text transcription:

1 / mu ?

Questions & Answers

QUESTION:

For the same magnetic field strength , is the energy density greater in vacuum or in a magnetic material? Explain. Does Eq. (30.11) imply that for a long solenoid in which the current is  the energy stored is proportional to \(1 / \mu ?\) And does this mean that for the same current less energy is stored when the solenoid is filled with a ferromagnetic material rather than with air? Explain.

Equation transcription:

Text transcription:

1 / mu ?

ANSWER:

Solution 8DQ

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