electric dipole

简明释义

电偶极子

英英释义

例句

1.The electric dipole radiation is essential for understanding the emission of light from atoms.

电偶极辐射对于理解原子发光至关重要。

2.When an electric dipole is placed in a uniform electric field, it experiences a force that tends to align it with the field.

当一个电偶极子放置在均匀电场中时，它会受到一种力，倾向于与电场对齐。

3.The behavior of an electric dipole in an external electric field can be analyzed using torque.

在外部电场中，电偶极子的行为可以通过扭矩进行分析。

4.In molecular chemistry, the polarity of a molecule can often be described by its electric dipole moment.

在分子化学中，分子的极性通常可以通过其电偶极子矩来描述。

5.An electric dipole is a pair of equal and opposite charges separated by a distance.

一个电偶极子是指一对等量且相反的电荷，它们之间有一定的距离。

作文

An electric dipole is a fundamental concept in physics and chemistry that describes a pair of equal and opposite charges separated by a distance. This concept is essential for understanding various phenomena in electromagnetism and molecular interactions. In simple terms, an electric dipole consists of two charges, one positive and one negative, which creates an electric field around them. The strength and orientation of this field depend on the magnitude of the charges and the distance between them.The significance of the electric dipole can be observed in many areas of science. For instance, in chemistry, molecules with permanent electric dipoles exhibit polar characteristics due to the uneven distribution of electron density. Water (H₂O) is a classic example; its bent shape leads to a region of partial positive charge near the hydrogen atoms and a region of partial negative charge near the oxygen atom. This polarity enables water to dissolve many ionic and polar substances, making it an excellent solvent and crucial for biological processes.In physics, electric dipoles play a critical role in understanding electromagnetic radiation. When charged particles accelerate, they produce changes in the electric field, which can propagate as electromagnetic waves. An oscillating electric dipole, such as that found in antennas, emits radio waves, allowing for wireless communication. The behavior of electric dipoles in external electric fields is also vital for applications in spectroscopy, where they interact with light, leading to absorption and emission spectra that provide information about molecular structures.Moreover, electric dipoles are not limited to isolated systems; they can interact with other dipoles and external fields. The interaction between two electric dipoles can lead to forces that either attract or repel them, depending on their orientation. This phenomenon is crucial in understanding molecular interactions, such as hydrogen bonding, which significantly influences the properties of substances.In summary, the concept of an electric dipole is integral to various scientific disciplines. Its implications extend from the behavior of simple molecules to complex systems like biological organisms and technological devices. By studying electric dipoles, scientists can gain insights into the fundamental forces that govern the interactions between charged particles, leading to advancements in materials science, chemistry, and physics. Understanding electric dipoles not only enhances our comprehension of the natural world but also paves the way for innovative applications in technology and industry.

电偶极子是物理学和化学中的一个基本概念，描述了一对相等且相反的电荷之间的距离。这个概念对于理解电磁学和分子相互作用中的各种现象至关重要。简单来说，电偶极子由两个电荷组成，一个正电荷和一个负电荷，它们之间形成一个电场。这个电场的强度和方向取决于电荷的大小和它们之间的距离。电偶极子的意义可以在科学的许多领域中观察到。例如，在化学中，具有永久电偶极子的分子由于电子密度的不均匀分布而表现出极性特征。水（H₂O）就是一个经典的例子；它的弯曲形状导致氢原子附近出现部分正电荷，而氧原子附近则出现部分负电荷。这种极性使水能够溶解许多离子和极性物质，使其成为优秀的溶剂，并对生物过程至关重要。在物理学中，电偶极子在理解电磁辐射方面发挥着关键作用。当带电粒子加速时，它们会产生电场的变化，这些变化可以传播为电磁波。像天线中发现的振荡电偶极子会发射无线电波，从而实现无线通信。电偶极子在外部电场中的行为对于光谱学应用也至关重要，因为它们与光相互作用，导致吸收和发射光谱，从而提供有关分子结构的信息。此外，电偶极子不仅限于孤立系统；它们可以与其他偶极子和外部场相互作用。两个电偶极子之间的相互作用可以导致吸引或排斥的力，具体取决于它们的方向。这种现象对于理解分子间的相互作用至关重要，例如氢键，这对物质的性质有显著影响。总之，电偶极子的概念在各个科学学科中都是不可或缺的。它的影响从简单分子的行为扩展到复杂系统，如生物体和技术设备。通过研究电偶极子，科学家可以深入了解支配带电粒子相互作用的基本力量，从而推动材料科学、化学和物理学的进步。理解电偶极子不仅增强了我们对自然世界的理解，而且为技术和工业中的创新应用铺平了道路。