magnetic induction

简明释义

磁感应

英英释义

例句

1.The principle of magnetic induction is used in electric generators to convert mechanical energy into electrical energy.

电动发电机中使用了磁感应原理，将机械能转化为电能。

2.Wireless charging technology relies on magnetic induction to power devices without physical connectors.

无线充电技术依赖于磁感应为设备供电，而无需物理连接。

3.The strength of magnetic induction can be measured using a device called a gaussmeter.

可以使用一种叫做高斯计的设备来测量磁感应的强度。

4.The concept of magnetic induction is crucial for understanding how inductors work in circuits.

理解电路中电感器的工作原理时，磁感应的概念至关重要。

5.In transformers, magnetic induction allows for the efficient transfer of electrical energy between coils.

在变压器中，磁感应使得电能在线圈之间高效传输。

作文

Understanding the principles of physics can sometimes seem daunting, but concepts like magnetic induction provide fascinating insights into the world around us. Magnetic induction refers to the process by which a material becomes magnetized when exposed to a magnetic field. This phenomenon is not only crucial in scientific studies but also has practical applications in our daily lives. For instance, many electronic devices utilize magnetic induction to function efficiently. The foundation of magnetic induction lies in the behavior of magnetic fields and how they interact with various materials. When a magnetic field is applied to a conductive material, it induces a magnetic moment within the material. This induced magnetism can either be temporary or permanent, depending on the properties of the material involved. Ferromagnetic materials, such as iron, exhibit strong magnetic induction, allowing them to retain their magnetism even after the external magnetic field is removed. In contrast, paramagnetic and diamagnetic materials respond differently to magnetic fields. Paramagnetic materials are weakly attracted to magnetic fields, while diamagnetic materials are repelled by them. The differences in these responses are essential for understanding how magnetic induction works in various contexts. One of the most significant applications of magnetic induction is in the generation of electricity. The principle of electromagnetic induction, discovered by Michael Faraday, states that a changing magnetic field can induce an electric current in a conductor. This principle is the backbone of many technologies, including electric generators and transformers. In a power plant, for example, turbines rotate within a magnetic field, producing electricity through magnetic induction. This process is vital for providing energy to homes and industries worldwide.Moreover, magnetic induction is also used in wireless charging technologies. Devices such as smartphones and electric toothbrushes can be charged without physical connectors, thanks to the principles of magnetic induction. A charging pad generates a magnetic field, which induces an electric current in the device placed on it, allowing for efficient energy transfer.In medicine, magnetic induction plays a role in magnetic resonance imaging (MRI). MRI machines use strong magnetic fields and radio waves to create detailed images of the organs and tissues inside the body. The technology relies on the principles of magnetic induction to manipulate the alignment of hydrogen atoms in the body, leading to the formation of images that help doctors diagnose various conditions.In conclusion, magnetic induction is a fundamental concept in physics that has far-reaching implications in technology, energy generation, and medical imaging. By understanding how magnetic induction works, we can appreciate the intricate connections between physical principles and their applications in our everyday lives. As we continue to explore and innovate, the importance of magnetic induction will undoubtedly grow, paving the way for new technologies and advancements in various fields.

理解物理学原理有时似乎令人生畏，但像磁感应这样的概念为我们提供了对周围世界的迷人见解。磁感应指的是一种材料在暴露于磁场时变得磁化的过程。这一现象不仅在科学研究中至关重要，而且在我们的日常生活中也有实际应用。例如，许多电子设备利用磁感应高效运行。磁感应的基础在于磁场的行为以及它们如何与各种材料相互作用。当一个磁场施加到导电材料上时，它会在材料内部诱发出一个磁矩。这种诱发的磁性可能是暂时的，也可能是永久的，这取决于所涉及材料的性质。铁等铁磁材料表现出强烈的磁感应，使其即使在外部磁场去除后也能保留其磁性。相比之下，顺磁和抗磁材料对磁场的反应不同。顺磁材料被磁场微弱吸引，而抗磁材料则被排斥。这些反应的差异对于理解磁感应在各种背景下的工作原理至关重要。磁感应最重要的应用之一是在发电中。迈克尔·法拉第发现的电磁感应原理指出，变化的磁场可以在导体中诱发电流。这个原理是许多技术的基础，包括发电机和变压器。例如，在发电厂中，涡轮机在磁场内旋转，通过磁感应产生电力。这个过程对于为全球家庭和工业提供能源至关重要。此外，磁感应还用于无线充电技术。智能手机和电动牙刷等设备可以在没有物理连接器的情况下充电，这要归功于磁感应的原理。充电垫产生一个磁场，诱导放置在其上的设备内产生电流，从而实现高效的能量传输。在医学中，磁感应在磁共振成像（MRI）中发挥着作用。MRI机器使用强磁场和射频波创建身体内部器官和组织的详细图像。该技术依赖于磁感应的原理来操纵体内氢原子的排列，从而形成帮助医生诊断各种病症的图像。总之，磁感应是物理学中的一个基本概念，在技术、能源生成和医学成像等方面具有深远的影响。通过理解磁感应的工作原理，我们可以欣赏物理原理与我们日常生活中应用之间的复杂联系。随着我们不断探索和创新，磁感应的重要性无疑会增长，为各个领域的新技术和进步铺平道路。