Ampere's law

简明释义

安培定律

英英释义

Ampere's law states that the magnetic field in space around an electric current is proportional to the electric current that produces it.

安培定律表明,电流周围的空间中的磁场与产生该磁场的电流成正比。

例句

1.The calculation of magnetic fields in solenoids relies heavily on Ampere's law (安培定律).

计算螺线管中的磁场在很大程度上依赖于Ampere's law (安培定律)。

2.In physics classes, we often discuss Ampere's law (安培定律) to understand the relationship between electric currents and magnetic fields.

在物理课上,我们经常讨论Ampere's law (安培定律),以理解电流与磁场之间的关系。

3.During the lab experiment, we applied Ampere's law (安培定律) to measure the magnetic field around a wire.

在实验室实验中,我们应用了Ampere's law (安培定律)来测量导线周围的磁场。

4.Engineers use Ampere's law (安培定律) to design efficient electrical circuits.

工程师使用Ampere's law (安培定律)来设计高效的电路。

5.Many textbooks explain Ampere's law (安培定律) with diagrams to illustrate its applications.

许多教科书通过图示解释Ampere's law (安培定律)及其应用。

作文

The study of electromagnetism is fundamental to understanding the principles that govern electric and magnetic fields. One of the key concepts in this field is known as Ampere's law, which plays a crucial role in explaining how electric currents produce magnetic fields. This law, formulated by the French physicist André-Marie Ampère in the early 19th century, provides a mathematical relationship between the current flowing through a conductor and the resulting magnetic field it generates. Essentially, Ampere's law states that the integrated magnetic field around a closed loop is proportional to the electric current passing through the loop. This principle not only enhances our understanding of magnetic fields but also serves as a foundation for various applications in electrical engineering and physics.To grasp the significance of Ampere's law, it is essential to consider its practical implications. For instance, in designing electric motors and generators, engineers rely on this law to predict how much torque or force will be generated by a given current. Similarly, in the realm of telecommunications, Ampere's law aids in understanding how signals can be transmitted over long distances without significant loss of quality. The ability to quantify the relationship between current and magnetic fields allows for the development of more efficient devices and systems.Moreover, Ampere's law also serves as a stepping stone towards more complex theories in electromagnetism, such as Maxwell's equations. These equations unify electricity and magnetism into a single framework, allowing scientists to explore the behavior of electromagnetic waves and their interactions with matter. Understanding Ampere's law is thus not merely an academic exercise; it is a gateway to deeper insights into the nature of light, radio waves, and even the fundamental forces of the universe.In practical terms, Ampere's law can be applied using a variety of methods. For instance, when calculating the magnetic field generated by a long, straight wire carrying a steady current, one can simplify the problem using the law’s integral form. This involves determining the path around which the magnetic field is being evaluated and integrating the contributions from each segment of the wire. Such calculations are essential in both theoretical studies and practical engineering applications.Furthermore, the educational value of Ampere's law cannot be overstated. It is often one of the first laws introduced to students studying physics or electrical engineering. By exploring this law, students learn to appreciate the interplay between electricity and magnetism, which is pivotal in many modern technologies. From household appliances to advanced scientific instruments, the principles derived from Ampere's law are ubiquitous in our daily lives.In conclusion, Ampere's law is a cornerstone of electromagnetism that not only helps us understand the relationship between electric currents and magnetic fields but also paves the way for advancements in technology and science. Its applications are vast, influencing everything from engineering design to theoretical physics. As we continue to explore the intricacies of electromagnetism, the importance of Ampere's law remains ever relevant, reminding us of the profound connections that exist within the natural world.

电磁学的研究对于理解支配电场和磁场的原理至关重要。在这个领域中,一个关键概念被称为Ampere's law,它在解释电流如何产生磁场方面起着重要作用。这个定律是由法国物理学家安德烈-玛丽·安培在19世纪初提出的,提供了电流通过导体与其生成的磁场之间的数学关系。基本上,Ampere's law 表示一个闭合回路周围的磁场积分与通过该回路的电流成正比。这一原理不仅增强了我们对磁场的理解,而且为电气工程和物理学的各种应用奠定了基础。要理解Ampere's law的重要性,必须考虑其实际应用。例如,在设计电动机和发电机时,工程师依赖这一法则来预测给定电流将产生多少扭矩或力。同样,在电信领域,Ampere's law 有助于理解信号如何在长距离内传输而不会显著损失质量。量化电流与磁场之间的关系使得开发更高效的设备和系统成为可能。此外,Ampere's law 也是电磁学中更复杂理论的基础,例如麦克斯韦方程组。这些方程将电和磁统一为一个框架,使科学家能够探索电磁波的行为及其与物质的相互作用。因此,理解Ampere's law并不仅仅是一个学术练习;它是深入洞察光、无线电波甚至宇宙基本力量的门户。在实际应用中,Ampere's law 可以通过多种方法应用。例如,在计算一根长直导线产生的稳恒电流的磁场时,可以使用该法则的积分形式简化问题。这涉及确定评估磁场的路径,并对导线每个段的贡献进行积分。这种计算在理论研究和实际工程应用中都是至关重要的。此外,Ampere's law 的教育价值不可低估。它通常是物理或电气工程专业学生学习的第一个定律。通过探索这一法则,学生们学会欣赏电与磁之间的相互作用,这在许多现代技术中都是关键。从家用电器到先进的科学仪器,源于Ampere's law 的原理在我们的日常生活中无处不在。总之,Ampere's law 是电磁学的基石,它不仅帮助我们理解电流与磁场之间的关系,还为科技和科学的发展铺平了道路。它的应用广泛,影响着从工程设计到理论物理的一切。随着我们继续探索电磁学的复杂性,Ampere's law 的重要性始终相关,提醒我们自然界内部存在的深刻联系。