Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

Types Of Superconductors01:28

Types Of Superconductors

A superconductor is a substance that offers zero resistance to the electric current when it drops below a critical temperature. Zero resistance is not the only interesting phenomenon as materials reach their transition temperatures. A second effect is the exclusion of magnetic fields. This is known as the Meissner effect. A light, permanent magnet placed over a superconducting sample will levitate in a stable position above the superconductor. High-speed trains that levitate on strong...
Superconductor01:24

Superconductor

A substance that reaches superconductivity, a state in which magnetic fields cannot penetrate, and there is no electrical resistance, is referred to as a superconductor. In 1911, Heike Kamerlingh Onnes of Leiden University, a Dutch physicist, observed a relation between the temperature and the resistance of the element mercury. The mercury sample was then cooled in liquid helium to study the linear dependence of resistance on temperature. It was observed that, as the temperature decreased, the...
Magnetic Field Due to Two Straight Wires01:18

Magnetic Field Due to Two Straight Wires

Consider two parallel straight wires carrying a current of 10 A and 20 A in the same direction and separated by a distance of 20 cm. Calculate the magnetic field at a point "P2", midway between the wires. Also, evaluate the magnetic field when the direction of the current is reversed in the second wire.
Magnetic Field Of A Current Loop01:16

Magnetic Field Of A Current Loop

Consider a circular loop with a radius a, that carries a current I. The magnetic field due to the current at an arbitrary point P along the axis of the loop can be calculated using the Biot-Savart law.
Magnetic Force Between Two Parallel Currents01:13

Magnetic Force Between Two Parallel Currents

Two long, straight, and parallel current-carrying conductors exert a force of equal magnitude on one another. The direction of the force depends on the current direction in the conductors.
The force exerted by the magnetic field due to the first conductor over a finite length of the second conductor is given as the product of the current in the second conductor and  the vector product of the length vector along the current element and the field due to the first conductor. According to the...
Magnetic Force On Current-Carrying Wires: Example01:22

Magnetic Force On Current-Carrying Wires: Example

In a magnetic field, moving charges encounter a force. If a wire contains these moving charges, i.e., if the wire is carrying a current, then a force acts on the wire as well. Consider a pair of flexible leads holding a wire that is 40 cm long and 10 g in weight in a horizontal position. The wire is placed in a constant magnetic field of 0.40 T, as shown in Figure 1(a). Determine the magnitude and direction of the current flowing in the wire needed to remove the tension in the supporting leads.

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

Dielectric properties of single crystals of barium titanate.

Nature·2010
Same author

Superconductivity--the state that came in from the cold.

Science (New York, N.Y.)·1988
Same author

Why is there no bulk specific heat anomaly at the superconducting transition temperature of BaPb(1-x) Bi(x) O(3)?

Proceedings of the National Academy of Sciences of the United States of America·1980
Same author

Ternary transition metal phosphides: High-temperature superconductors.

Proceedings of the National Academy of Sciences of the United States of America·1980
Same author

Enhancement of Superconductivity through Lattice Softening.

Science (New York, N.Y.)·1980
Same author

P-State Pairing and the Ferromagnetism of ZrZn2.

Science (New York, N.Y.)·1978

関連する実験動画

Updated: Jul 12, 2026

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

高電場,高電流の超伝導体である.

J K Hulm, B T Matthias

    Science (New York, N.Y.)
    |May 23, 1980
    PubMed
    まとめ

    この研究は,核融合炉などの先進技術で使用される高電磁場電磁石の作成に不可欠な超伝導材料を調査しています. これらの材料は,損失なしの操作を可能にし,超伝導電極技術の進歩をもたらします.

    科学分野:

    • マテリアルサイエンス 材料科学
    • 凝縮物質物理学 凝縮物質物理学
    • 電気工学 電気工学とは

    背景:

    • 超伝導材料は,電気抵抗がゼロである.
    • 高い電流密度 (約. 10^6 A/cm2) は,強い磁場 (50Tまで) で発生する.
    • これらの性質は,損失のない電磁石の開発に不可欠です.

    研究 の 目的:

    • 高性能超伝導材料の材料科学の側面を検証する.
    • 超伝導性の背後にある物理的原理の概要を述べる.
    • これらの材料の電磁気アプリケーションの技術的適応について議論する.

    主な方法:

    • 超伝導性を支配する物理原理のレビュー.
    • 超伝導材料の主要なパラメータの分析.
    • 電子磁気巻きの技術的要件についての議論.

    主要な成果:

    • 超伝導材料は,高磁場生成に不可欠である.
    • それらの応用は,超伝導電工学の基礎となる.
    • この研究は,材料,原則,技術的適応を対象としています.

    さらに関連する動画

    High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions
    08:42

    High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions

    Published on: October 10, 2014

    Comparison of Two Different Synthesis Methods of Single Crystals of Superconducting Uranium Ditelluride
    04:51

    Comparison of Two Different Synthesis Methods of Single Crystals of Superconducting Uranium Ditelluride

    Published on: July 8, 2021

    関連する実験動画

    Last Updated: Jul 12, 2026

    Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
    05:39

    Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

    Published on: August 2, 2019

    High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions
    08:42

    High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions

    Published on: October 10, 2014

    Comparison of Two Different Synthesis Methods of Single Crystals of Superconducting Uranium Ditelluride
    04:51

    Comparison of Two Different Synthesis Methods of Single Crystals of Superconducting Uranium Ditelluride

    Published on: July 8, 2021

    結論:

    • 超伝導材料は,電気技術の進歩の鍵です.
    • より高い磁場を可能にする材料には,将来の可能性が存在します.
    • 継続的な材料の研究は,将来のアプリケーションにとって非常に重要です.