bound charge

简明释义

束缚电荷

英英释义

例句

1.Calculating the bound charge helps in determining the total electric field.

计算束缚电荷有助于确定总电场。

2.In a dielectric material, the bound charge contributes to polarization.

在介电材料中，束缚电荷有助于极化。

3.The bound charge density can be derived from the polarization vector.

束缚电荷密度可以从极化矢量中推导出来。

4.When studying capacitors, one must account for the bound charge on the dielectric.

在研究电容器时，必须考虑介电材料上的束缚电荷。

5.The concept of bound charge is crucial in understanding electric fields in materials.

理解材料中的电场时，束缚电荷的概念至关重要。

作文

In the realm of physics, particularly in electrostatics, the concept of bound charge is pivotal in understanding how materials respond to electric fields. A bound charge refers to charges that are not free to move throughout a material but are instead fixed in position due to the atomic structure of the material itself. This phenomenon occurs primarily in dielectric materials, which are insulators that can be polarized when exposed to an external electric field.When an electric field is applied to a dielectric material, the positive and negative charges within the atoms of the material experience a force. This force causes a slight displacement of the charges, leading to a separation of charge within the material. The charges that have been displaced from their equilibrium positions are referred to as bound charges. Unlike free charges, which can move freely through conductors, bound charges remain localized within the material, creating polarization.The significance of bound charge extends beyond mere academic interest; it has practical implications in various technologies. For instance, capacitors, which are fundamental components in electronic circuits, rely on the ability of materials to store bound charges. When a capacitor is charged, an electric field is established between its plates, causing the dielectric material between them to polarize. This polarization leads to the accumulation of bound charges on the surfaces of the dielectric, allowing the capacitor to store electrical energy.Moreover, understanding bound charges is crucial in the field of electrostatics when designing devices like sensors and actuators. These devices often utilize materials with specific dielectric properties to manipulate electric fields effectively. By controlling the distribution of bound charges, engineers can enhance the performance of such devices, making them more efficient and responsive.In addition to their applications in technology, bound charges also play a role in natural phenomena. For example, the behavior of lightning is influenced by the presence of bound charges in the atmosphere. During a thunderstorm, the movement of air and water droplets can lead to the separation of charges, resulting in the accumulation of bound charges in clouds. When the electric field strength becomes sufficiently high, it can overcome the insulating properties of the air, leading to a discharge in the form of lightning.In conclusion, the concept of bound charge is essential for understanding both theoretical and practical aspects of electrostatics. Its implications reach far beyond the classroom, influencing the design of electronic components and the understanding of natural events. By grasping the nature of bound charges, one can appreciate the intricate relationship between electricity and materials, paving the way for advancements in technology and science. As we continue to explore the world of physics, the role of bound charge will undoubtedly remain a key topic of interest and research.

在物理学的领域，特别是在静电学中，bound charge（束缚电荷）的概念对于理解材料如何响应电场至关重要。bound charge指的是那些不能自由移动于材料中的电荷，而是由于材料本身的原子结构而固定在位置上的电荷。这种现象主要发生在介电材料中，这些材料是绝缘体，当暴露于外部电场时可以被极化。当电场施加到介电材料上时，材料内部原子的正负电荷会受到力的作用。这种力导致电荷发生轻微位移，从而在材料内部产生电荷分离。被从其平衡位置偏移的电荷被称为bound charges。与可以在导体中自由移动的自由电荷不同，bound charges保持局限于材料内部，形成极化。bound charge的重要性超出了单纯的学术兴趣，它在各种技术中具有实际意义。例如，电容器，作为电子电路中的基本组件，依赖于材料存储bound charges的能力。当电容器充电时，其板之间建立了电场，导致其中的介电材料极化。这种极化导致bound charges在介电材料表面积累，使电容器能够存储电能。此外，在设计传感器和执行器等设备时，理解bound charges也至关重要。这些设备通常利用具有特定介电特性的材料来有效地操控电场。通过控制bound charges的分布，工程师可以提高这些设备的性能，使其更加高效和灵敏。除了在技术应用中的作用，bound charges在自然现象中也发挥着重要作用。例如，闪电的行为受到大气中bound charges存在的影响。在雷暴期间，空气和水滴的运动可能导致电荷的分离，进而导致云中bound charges的积累。当电场强度足够高时，它可以克服空气的绝缘特性，导致以闪电的形式发生放电。总之，bound charge的概念对于理解静电学的理论和实践方面至关重要。它的影响远远超出了课堂，影响着电子元件的设计和自然现象的理解。通过掌握bound charges的性质，人们可以欣赏电与材料之间错综复杂的关系，为技术和科学的进步铺平道路。随着我们继续探索物理世界，bound charge的角色无疑将继续成为一个关键的研究主题。