electric field

简明释义

电场

英英释义

例句

1.In a parallel plate capacitor, the strength of the electric field is uniform between the plates.

在平行板电容器中，板间的电场强度是均匀的。

2.The direction of the electric field is defined as the direction a positive charge would move.

定义电场的方向为正电荷移动的方向。

3.The electric field around a charged object can exert a force on other charges nearby.

带电物体周围的电场可以对附近的其他电荷施加力。

4.When lightning strikes, it creates a strong electric field that can affect nearby objects.

当闪电击中时，会产生强大的电场，可能会影响附近的物体。

5.Electric field lines can be used to visualize the strength and direction of the electric field.

电场线可用于可视化电场的强度和方向。

作文

The concept of an electric field is fundamental to our understanding of electromagnetism, one of the four fundamental forces of nature. An electric field can be defined as a region around a charged particle where other charged particles experience a force. This phenomenon is essential in explaining how electric charges interact with one another, and it plays a crucial role in various applications ranging from everyday electronics to advanced scientific research.To visualize an electric field, imagine placing a positive charge at the center of a room. The space around this charge is filled with an electric field that extends outward in all directions. If you were to introduce another positive charge into this electric field, it would feel a repulsive force pushing it away from the central charge. Conversely, if you introduced a negative charge, it would experience an attractive force, being drawn toward the positive charge. This interaction illustrates how the electric field mediates the forces between charged particles.The strength and direction of an electric field are represented by electric field lines. These lines illustrate the path a positive test charge would take if placed in the field. The density of these lines indicates the strength of the electric field—the closer the lines are to each other, the stronger the field. Understanding this visualization helps in grasping how electric fields operate in various situations, such as in capacitors, where energy is stored in an electric field between two plates.In practical terms, electric fields are not just theoretical constructs; they have real-world implications. For example, in the realm of electronics, the behavior of components like transistors and diodes is heavily influenced by the electric fields they generate and respond to. Engineers harness these fields to design circuits that perform specific functions, such as amplifying signals or switching currents on and off.Moreover, electric fields also play a significant role in medical applications. One notable example is in electrotherapy, where controlled electric fields are used to stimulate nerves and muscles for therapeutic purposes. The understanding of how electric fields affect biological tissues has led to advancements in treatments for various conditions, showcasing the interdisciplinary nature of this concept.In conclusion, the electric field is a vital concept in physics that explains the interactions between charged particles. Its applications span across multiple fields, including electronics and medicine, demonstrating its importance in both theoretical and practical contexts. By mastering the concept of the electric field, we gain deeper insights into the workings of the universe and enhance our ability to innovate in technology and science.

电场的概念是我们理解电磁学的基础，电磁学是自然界四种基本力之一。电场可以定义为一个带电粒子周围的区域，在这个区域内，其他带电粒子会受到力的作用。这一现象对于解释电荷之间的相互作用至关重要，并在从日常电子设备到先进科学研究的各种应用中发挥着关键作用。为了可视化电场，可以想象在房间中央放置一个正电荷。这个电荷周围的空间充满了向外延伸的电场。如果你在这个电场中引入另一个正电荷，它会感受到一种排斥力，将它推离中心电荷。相反，如果你引入一个负电荷，它会感受到一种吸引力，被拉向正电荷。这种相互作用说明了电场如何介导带电粒子之间的力。电场的强度和方向通过电场线来表示。这些线描绘了如果放置一个正测试电荷，它将沿着电场的路径移动。电场线的密度表示电场的强度——线条越靠近，电场越强。理解这种可视化有助于掌握电场在各种情况下的运作，例如在电容器中，能量存储在两个极板之间的电场中。在实际应用中，电场不仅仅是理论构造；它们具有现实世界的影响。例如，在电子学领域，晶体管和二极管等组件的行为受到它们产生和响应的电场的严重影响。工程师利用这些场来设计执行特定功能的电路，例如放大信号或开关电流的开关。此外，电场在医疗应用中也发挥着重要作用。一个显著的例子是电疗法，其中控制的电场用于刺激神经和肌肉以进行治疗。理解电场如何影响生物组织已经导致对各种疾病治疗的进展，展示了这一概念的跨学科性质。总之，电场是物理学中的一个重要概念，它解释了带电粒子之间的相互作用。它的应用跨越多个领域，包括电子学和医学，展示了它在理论和实践背景下的重要性。通过掌握电场的概念，我们能够更深入地了解宇宙的运作，并增强我们在技术和科学创新方面的能力。