Exercises in Electricity and Magnetism: 100 Examples and 400 Exercises
暫譯: 電與磁習題:100個範例與400個練習題

Matsushita, Teruo

  • 出版商: Springer
  • 出版日期: 2025-05-26
  • 售價: $3,400
  • 貴賓價: 9.5$3,230
  • 語言: 英文
  • 頁數: 504
  • 裝訂: Hardcover - also called cloth, retail trade, or trade
  • ISBN: 3031679393
  • ISBN-13: 9783031679391
  • 海外代購書籍(需單獨結帳)

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商品描述

This book covers a great variety of problems on electricity and magnetism described in the textbook, "Electricity and Magnetism", in which superconductors are classified as one kind of magnetic materials. These problems will be helpful for a deeper understanding of the E-B analogy through a comparison between static electric and magnetic phenomena. Additionally, the usefulness of the vector potential is widely introduced. For example, the vector potential is directly used to determine the induced electromotive force.

The author provides various exercises that are not covered in the textbook. The Poynting vector is useful for understanding the energy flow into capacitors or transmission lines during a charging process or into resistors during a dissipation process. A comparison between normal conducting and superconducting transmission lines shows a clear difference in the energy flow, although the final stored magnetic energy is the same. The electromagnetic potential of electromagnetic transverse electric (TE) and transverse magnetic (TM) waves in a waveguide also presents an interesting difference: The electric potential is zero in one case and non-zero in the other case. The reason for such a difference is explored. The relationship between the electric charge and electric current induced on the conductor surface is investigated for an electromagnetic wave in a waveguide or for that reflected on a conductor surface.

This exercise book can be used together with the textbook 'Electricity and Magnetism' by the same author.

商品描述(中文翻譯)

這本書涵蓋了在教科書《電與磁》中描述的各種電磁問題,其中超導體被歸類為一種磁性材料。這些問題將有助於通過靜電和靜磁現象之間的比較,深入理解電場與磁場的類比。此外,向量勢的實用性也被廣泛介紹。例如,向量勢被直接用來確定感應電動勢。

作者提供了許多教科書中未涵蓋的練習題。波因廷向量對於理解在充電過程中進入電容器或傳輸線的能量流,或在耗散過程中進入電阻器的能量流非常有用。正常導體與超導體傳輸線之間的比較顯示了能量流的明顯差異,儘管最終儲存的磁能是相同的。在波導中,電磁橫電(TE)波和橫磁(TM)波的電磁勢也呈現出有趣的差異:在一種情況下電勢為零,而在另一種情況下則為非零。對於這種差異的原因進行了探討。還調查了在波導中或在導體表面反射的電磁波上,導體表面所感應的電荷與電流之間的關係。

這本練習書可以與同一作者的教科書《電與磁》一起使用。

作者簡介

Prof. Dr. Teruo Matsushita has studied flux pinning and related electromagnetic phenomena in superconductors for 50 years. The first research field includes theoretical calculation of elementary pinning force of specific pinning centers and estimation of the pinning force density as a function of the elementary pinning force and number density. In the latter research field, he established the critical state theory that supports the well-known critical state model by using the first principles of minimizing the free energy in the reversible state followed by development to the irreversible state. The theoretical analyses of the longitudinal field problem and the effect of flux creep in high-temperature superconductors are also included in the latter category. He is a member of the Institute of Electrical Engineers of Japan, Cryogenics and Superconductivity of Japan, and Institute of Physics (UK).

作者簡介(中文翻譯)

松下輝夫教授在超導體的通量釘扎及相關電磁現象方面研究了50年。第一個研究領域包括特定釘扎中心的基本釘扎力的理論計算,以及釘扎力密度作為基本釘扎力和數量密度的函數的估算。在後一個研究領域中,他建立了臨界狀態理論,該理論通過使用最小化可逆狀態自由能的第一原理來支持著名的臨界狀態模型,隨後發展到不可逆狀態。對於縱向場問題的理論分析以及高溫超導體中通量爬行的影響也包含在後一類別中。他是日本電氣工程師學會、日本低溫技術與超導學會以及英國物理學會的成員。