leaf electrometer

简明释义

箔验电器

英英释义

例句

1.To illustrate the concept of charge conservation, the teacher set up a leaf electrometer in front of the class.

为了说明电荷守恒的概念，老师在班级前面设置了一个叶片电计。

2.In physics class, we learned how a leaf electrometer can detect electric charge.

在物理课上，我们学习了如何使用叶片电计来检测电荷。

3.During the experiment, the leaf electrometer indicated a positive charge when rubbed with fur.

在实验中，叶片电计在与毛皮摩擦时显示出正电荷。

4.The leaf electrometer is a simple device that helps demonstrate electrostatic principles.

这款叶片电计是一个简单的设备，有助于演示静电原理。

5.The scientist used a leaf electrometer to measure the static electricity in the laboratory.

科学家使用叶片电计来测量实验室中的静电。

作文

The study of electricity and its properties has fascinated scientists for centuries. One of the intriguing devices that emerged from these explorations is the leaf electrometer, a simple yet effective instrument used to measure electric charge. The leaf electrometer consists of two thin metal leaves, usually made of gold or aluminum, suspended from a common point. When an electric charge is applied to the device, the leaves repel each other due to the like charges, causing them to diverge. This divergence can be observed visually and is proportional to the amount of charge present. Understanding how the leaf electrometer works is essential for grasping fundamental concepts in electrostatics. The principle behind its operation is based on Coulomb's law, which states that like charges repel each other while opposite charges attract. When a charged object is brought near the leaf electrometer, it induces a charge in the leaves, resulting in their separation. This separation can be measured and quantified, allowing scientists to determine the strength of the electric field produced by the charged object.The leaf electrometer has historical significance as well. It was developed in the 18th century by scientists such as Abraham Bennet and later improved by others like Michael Faraday. These early versions were crucial in advancing our understanding of electricity and electrostatic phenomena. They provided a visual demonstration of electric forces, making it easier for students and researchers to comprehend abstract concepts related to charge and electric fields.In modern times, while more advanced instruments have been developed, the leaf electrometer still serves as an educational tool in physics classrooms. It provides a hands-on experience for students to observe the effects of electric charge in a tangible way. By experimenting with the leaf electrometer, students can learn about charge conservation, electrostatic induction, and the behavior of electric fields. Moreover, the leaf electrometer also finds applications in various scientific fields. For instance, it can be used in laboratories to measure the charge of small particles or to test the effectiveness of different materials in shielding against electric fields. Its simplicity and ease of use make it an attractive option for educational demonstrations and basic research.In conclusion, the leaf electrometer is not only a fascinating historical device but also an important educational tool that continues to enhance our understanding of electricity. Its operation is rooted in fundamental principles of physics, making it an excellent example for students learning about electrostatics. By utilizing the leaf electrometer, learners can visually grasp the concepts of electric charge and fields, paving the way for deeper exploration into the world of electricity and its myriad applications. The legacy of the leaf electrometer endures, reminding us of the curiosity and ingenuity that drives scientific discovery.

电力及其特性的研究吸引了科学家们几个世纪。由这些探索而产生的一个有趣设备是叶片电计，这是一种简单而有效的仪器，用来测量电荷。叶片电计由两片薄金属叶片组成，通常由金或铝制成，悬挂在一个共同的点上。当电荷施加到设备上时，由于相同的电荷，叶片之间会相互排斥，导致它们分开。这种分离可以直观地观察到，并且与存在的电荷量成正比。理解叶片电计的工作原理对于掌握静电学中的基本概念至关重要。它的操作原理基于库仑定律，该定律指出，相同的电荷相互排斥，而相反的电荷则相互吸引。当带电物体靠近叶片电计时，会在叶片中感应出电荷，导致它们的分离。这种分离可以被测量和量化，从而使科学家能够确定带电物体产生的电场强度。叶片电计在历史上也具有重要意义。它是在18世纪由亚伯拉罕·贝内特等科学家开发的，后来又被迈克尔·法拉第等人改进。这些早期版本对于推进我们对电力和静电现象的理解至关重要。它们提供了电力作用的可视化演示，使学生和研究人员更容易理解与电荷和电场相关的抽象概念。在现代，虽然已经开发出更先进的仪器，但叶片电计仍然作为物理课堂上的教育工具。它为学生提供了一种亲身体验，观察电荷效应的具体方式。通过实验叶片电计，学生可以学习电荷守恒、静电感应和电场的行为。此外，叶片电计还在各个科学领域中找到了应用。例如，它可以用于实验室中测量小颗粒的电荷，或测试不同材料在抵御电场方面的有效性。其简单易用使其成为教育演示和基础研究的有吸引力的选择。总之，叶片电计不仅是一个迷人的历史设备，也是一个重要的教育工具，继续增强我们对电力的理解。它的操作根植于物理学的基本原理，使其成为学生学习静电学的优秀示例。通过利用叶片电计，学习者可以直观地掌握电荷和电场的概念，为深入探索电力及其众多应用铺平道路。叶片电计的遗产仍在延续，提醒我们科学发现背后的好奇心和创造力。