electric dipole

简明释义

电偶极子

英英释义

例句

1.In molecular chemistry, the electric dipole 电偶极子 moment helps determine the polarity of a molecule.

在分子化学中，电偶极子 electric dipole矩帮助确定分子的极性。

2.The interaction between two electric dipoles 电偶极子 can lead to attractive or repulsive forces.

两个电偶极子 electric dipole之间的相互作用可能导致吸引或排斥力。

3.The behavior of an electric dipole 电偶极子 in an external electric field can be described using potential energy.

在外部电场中，电偶极子 electric dipole的行为可以用势能来描述。

4.An electric dipole 电偶极子 consists of two equal and opposite charges separated by a distance.

一个电偶极子 electric dipole由两个相等且相反的电荷组成，它们之间有一定距离。

5.When exposed to a uniform electric field, an electric dipole 电偶极子 will align itself with the field.

当暴露在均匀电场中时，电偶极子 electric dipole会与电场对齐。

作文

An electric dipole is a fundamental concept in electromagnetism that describes a separation of positive and negative charges. It consists of two equal and opposite charges separated by a distance, which creates an electric field around it. Understanding the properties and behavior of an electric dipole is crucial for various applications in physics and engineering. For instance, in molecular chemistry, many molecules can be represented as electric dipoles due to their polar nature. Water (H2O) is a classic example; its bent shape leads to a significant separation of charge, making it a polar molecule with a strong electric dipole moment.The electric dipole moment is defined as the product of the charge and the distance between the charges. Mathematically, it is expressed as p = q * d, where p is the dipole moment, q is the magnitude of one of the charges, and d is the distance separating the charges. This dipole moment is a vector quantity, pointing from the negative charge to the positive charge. The direction of the dipole moment is essential in determining how the dipole interacts with external electric fields.When an electric dipole is placed in an external electric field, it experiences a torque that tends to align it with the field. This phenomenon is critical in understanding the behavior of electric dipoles in various environments. For example, in the presence of a uniform electric field, the potential energy of the dipole is minimized when it aligns with the field direction. This alignment can lead to interesting effects, such as the rotation of molecules in an electric field, which is leveraged in techniques like dielectric spectroscopy.Moreover, the interaction of electric dipoles with electromagnetic radiation is another fascinating aspect. When exposed to varying electric fields, electric dipoles can absorb or emit energy, leading to transitions between different energy states in atoms and molecules. This principle underlies many spectroscopic techniques used in chemistry and physics to analyze substances at the molecular level.In conclusion, the concept of an electric dipole is vital in various scientific fields, from chemistry to physics and engineering. Its ability to interact with electric fields and electromagnetic radiation makes it a key player in understanding molecular behavior and designing technologies such as antennas and sensors. By grasping the principles behind electric dipoles, scientists and engineers can develop innovative solutions to complex problems, enhancing our understanding of the physical world.

电偶极子是电磁学中的一个基本概念，描述了正负电荷的分离。它由两个相等且相反的电荷组成，这些电荷之间存在一定距离，从而在其周围产生电场。理解电偶极子的性质和行为对于物理和工程的各种应用至关重要。例如，在分子化学中，许多分子由于其极性特征可以被表示为电偶极子。水（H2O）就是一个经典的例子；其弯曲的形状导致显著的电荷分离，使其成为具有强电偶极矩的极性分子。电偶极矩定义为电荷与电荷之间距离的乘积。数学上，它表示为p = q * d，其中p是偶极矩，q是其中一个电荷的大小，d是分隔电荷的距离。这个偶极矩是一个矢量量，指向从负电荷到正电荷的方向。偶极矩的方向在确定偶极子如何与外部电场相互作用时至关重要。当电偶极子置于外部电场中时，它会经历一个扭矩，倾向于与电场对齐。这种现象对于理解电偶极子在各种环境中的行为至关重要。例如，在均匀电场中，偶极子的势能在与电场方向对齐时达到最小。这种对齐可以导致有趣的效应，例如分子在电场中的旋转，这在介电光谱学等技术中得到了利用。此外，电偶极子与电磁辐射的相互作用是另一个引人入胜的方面。当暴露于变化的电场时，电偶极子可以吸收或发射能量，导致原子和分子之间不同能级的跃迁。这一原理是许多光谱技术的基础，用于分析分子水平的物质。总之，电偶极子的概念在化学、物理和工程等多个科学领域至关重要。它与电场和电磁辐射的相互作用使其成为理解分子行为和设计天线、传感器等技术的关键因素。通过掌握电偶极子的原理，科学家和工程师能够开发出创新解决方案，以应对复杂问题，增强我们对物理世界的理解。