electric flux

简明释义

电通

英英释义

例句

1.In a uniform electric field, the electric flux through a surface depends on the angle of the surface relative to the field.

在均匀电场中，穿过一个表面的电通量取决于该表面与电场的角度。

2.To calculate the electric flux, you need to know the electric field strength and the area of the surface.

要计算电通量，你需要知道电场强度和表面的面积。

3.According to Faraday's law, a changing electric flux can induce an electromotive force.

根据法拉第定律，变化的电通量可以感应出电动势。

4.The concept of electric flux is crucial in understanding Gauss's law.

理解高斯定律时，电通量的概念至关重要。

5.The electric flux through a closed surface can be used to determine the charge enclosed within that surface.

通过一个封闭表面的电通量可以用来确定该表面内的电荷。

作文

Electricity is a fundamental aspect of our daily lives, powering everything from our homes to our devices. One of the essential concepts in understanding electricity is the idea of electric flux, which plays a crucial role in the field of electromagnetism. In simple terms, electric flux refers to the flow of electric field lines through a given surface area. It provides insights into how electric fields interact with surfaces and is vital for understanding various electrical phenomena.To comprehend electric flux, we first need to understand electric fields. An electric field is created around charged objects, exerting forces on other charges within the field. The strength and direction of this field can be represented visually using field lines. When we talk about electric flux, we are essentially discussing the number of these field lines that pass through a specific area.Mathematically, electric flux (Φ_E) can be expressed as the product of the electric field (E) and the area (A) through which the field lines pass, adjusted by the angle (θ) between the field lines and the normal to the surface. This relationship is captured in the equation:Φ_E = E * A * cos(θ)This formula highlights several important factors that affect electric flux. For instance, if the electric field is perpendicular to the surface (θ = 0 degrees), the flux is maximized. Conversely, if the field is parallel to the surface (θ = 90 degrees), the flux is zero since no field lines penetrate the surface.Understanding electric flux is not only crucial for theoretical physics but also has practical applications. For example, in the study of capacitors, which store electrical energy, the concept of electric flux helps us understand how much charge can be stored based on the electric field within the capacitor. Additionally, in Gauss's law, which relates the electric flux through a closed surface to the charge enclosed within that surface, electric flux is fundamental in calculating electric fields for symmetrical charge distributions.Furthermore, electric flux is pivotal in understanding electromagnetic waves. These waves propagate through space and can be described in terms of changing electric and magnetic fields. The interaction of these fields can be analyzed using the concept of electric flux, leading to deeper insights into wave behavior and properties.In summary, electric flux is a key concept in the study of electricity and electromagnetism. It quantifies the flow of electric field lines through a surface, allowing us to analyze and predict the behavior of electric fields in various contexts. From practical applications in capacitors to theoretical frameworks like Gauss's law, understanding electric flux is essential for anyone studying physics or engineering. As technology continues to evolve, the principles underlying electric flux will remain integral to advancements in electrical and electronic systems, showcasing the enduring relevance of this fundamental concept in our increasingly electrified world.

电力是我们日常生活中的一个基本方面，为我们的家庭和设备提供动力。理解电力的一个重要概念是电通量的概念，它在电磁学领域中发挥着至关重要的作用。简单来说，电通量是指通过给定表面面积的电场线的流动。它提供了电场如何与表面相互作用的洞察，并且对于理解各种电气现象至关重要。要理解电通量，我们首先需要了解电场。电场是在带电物体周围产生的，对场内其他电荷施加力。这个场的强度和方向可以用场线来直观表示。当我们谈论电通量时，我们实际上是在讨论穿过特定区域的这些场线的数量。在数学上，电通量（Φ_E）可以表示为电场（E）和通过该区域的面积（A）的乘积，再调整与场线和表面的法线之间的角度（θ）。这个关系在方程中体现：Φ_E = E * A * cos(θ)这个公式突出了影响电通量的几个重要因素。例如，如果电场垂直于表面（θ = 0度），则通量最大。相反，如果场平行于表面（θ = 90度），则通量为零，因为没有场线穿透表面。理解电通量不仅对理论物理至关重要，还有实际应用。例如，在电容器的研究中，电容器储存电能，电通量的概念帮助我们理解根据电容器内的电场可以储存多少电荷。此外，在高斯定律中，该定律将封闭表面的电通量与该表面内的电荷相关联，电通量在计算对称电荷分布的电场时是基础。此外，电通量在理解电磁波时也至关重要。这些波在空间中传播，可以用变化的电场和磁场来描述。这些场的相互作用可以通过电通量的概念进行分析，从而深入了解波的行为和特性。总之，电通量是电力和电磁学研究中的关键概念。它量化了电场线通过表面的流动，使我们能够分析和预测电场在各种背景下的行为。从电容器中的实际应用到像高斯定律这样的理论框架，理解电通量对于任何学习物理或工程的人来说都是必不可少的。随着技术的不断发展，支撑电通量的原则将继续成为电气和电子系统进步的核心，展示了这个基本概念在我们日益电气化的世界中的持久相关性。