coulomb

简明释义

英[ˈkuːlɒm]美[ˈkuːlɑːmˌˈkuːloʊm]

n. 库仑（电量单位）

n. （Coulomb）人名；（法）库仑

英英释义

单词用法

同义词

反义词

例句

1.Chargers are available from various companies, including Coulomb Technologies of Campbell, Calif.

很多公司提供了充电设备，包括加州坎贝尔市的库仑科技(译注：美国领先的电动车充电站和公共电系统服务商)。

2.The electron gas screening on Coulomb potential can be weakened greatly when Landau level filling factor is an even number.

当填充因子为偶数时，其本征能量的绝对值最大，此时电子气对库仑势的屏蔽效应最弱。

3.The Coulomb interaction between the electron and the hole is treated accurately by the direct diagonalization of the Hamiltonian matrix.

通过哈密顿量矩阵的对角化，对电子和空穴间的库仑相互作用进行了精确处理。

4.Resistivity of the composite is much greater than that of pure SP under cryogenic temperature (77k), which is called Coulomb Blockade Effect.

复合材料低温下(77k)的体积电阻率明显高于纯sp，可以看作是库仑阻塞作用的结果。

5.We can use the Coulomb force law to explain this where we can describe the force as a function of r.

我们用库伦定律解释它，力作为距离r的函数，让我们考虑一下。

6.The unit of electric quantity is coulomb.

物体的电量单位是库仑。

7.Whether the normal stress and static Coulomb failure stress have the effect on triggering aftershocks is analyzed.

分析了正应力变化和静态库仑破裂应力变化是否对余震有触发作用。

8.Coulomb Technologies is planning a "ChargePoint Network" around the country that would feed EVs and automatically bill their owners.

库仑科技正在计划建设一个遍布全美的“充点网络”来满足电动汽车的需要并且可以自动给车主发送账单。

9.A capacitor can store energy in the form of electric charge measured in coulombs.

电容器可以以电荷的形式存储能量，这种电荷的单位是 库仑。

10.When measuring static electricity, the charge can be expressed in coulombs.

在测量静电时，电荷可以用 库仑 表示。

11.The total electric charge in a circuit can be calculated in coulombs.

电路中的总电荷可以用 库仑 来计算。

12.The charge of an electron is approximately -1.6 x 10^-19 coulombs.

一个电子的电荷大约是 -1.6 x 10^-19 库仑。

13.One coulomb is defined as the amount of charge transferred by a constant current of one ampere in one second.

一个 库仑 被定义为在一秒钟内由一个安培的恒定电流转移的电荷量。

作文

The concept of electric charge is fundamental to the field of physics, and one of the key units used to measure this charge is the coulomb. Named after the French physicist Charles-Augustin de Coulomb, the coulomb is defined as the amount of electric charge transported by a constant current of one ampere in one second. This definition highlights the relationship between electric charge and current, which is crucial for understanding how electrical systems operate.In everyday life, we encounter various forms of electricity, from the static charge that can cause a shock when we touch a metal doorknob after walking on a carpet, to the complex circuits that power our homes and devices. The coulomb serves as a bridge to quantify these phenomena, allowing us to calculate the forces between charged objects. For instance, two charges separated by a distance will exert a force on each other that can be calculated using Coulomb's Law, which states that the force is proportional to the product of the magnitudes of the charges and inversely proportional to the square of the distance between them.Understanding the coulomb is also essential in the study of capacitors, which are devices that store electrical energy. The capacitance of a capacitor is defined as the amount of charge it can hold per unit voltage, measured in coulombs per volt. This relationship is critical in designing circuits that require specific amounts of energy storage, such as in power supplies and electronic devices.Moreover, in the realm of electrostatics, the coulomb helps us comprehend the interactions between charged particles. For example, when discussing atomic structure, we often refer to the forces between protons and electrons, which are charged particles. The coulomb provides a way to quantify these interactions, enabling scientists to predict the behavior of atoms and molecules in various conditions.In addition to its applications in physics, the coulomb also plays a significant role in engineering and technology. Electrical engineers use this unit to design and analyze circuits, ensuring that systems function efficiently and safely. From smartphones to electric vehicles, understanding the principles behind the coulomb is vital for innovation in technology.Furthermore, as we move towards a more energy-conscious world, the coulomb becomes increasingly relevant in discussions about renewable energy sources. For instance, solar panels convert sunlight into electricity, and the efficiency of these systems can be evaluated in terms of coulombs produced per unit of sunlight. This measurement is crucial for advancing technologies that aim to reduce our reliance on fossil fuels.In conclusion, the coulomb is not just a unit of measurement; it is a fundamental concept that underpins much of modern physics and engineering. Its significance extends beyond theoretical applications, affecting our daily lives through the technologies we use. By understanding the coulomb, we gain insight into the nature of electric charge, the behavior of charged particles, and the principles that govern electrical systems. As we continue to explore and innovate in the field of electricity, the coulomb will undoubtedly remain a cornerstone of our understanding.

电荷的概念是物理学领域的基础，而用于测量这种电荷的关键单位之一是库仑。该单位以法国物理学家查尔斯-奥古斯丁·库仑的名字命名，定义为在一秒钟内由一个安培的恒定电流运输的电荷量。这个定义突显了电荷与电流之间的关系，这对于理解电气系统的运行至关重要。在日常生活中，我们会遇到各种形式的电力，从走在地毯上后触摸金属门把手时可能造成的静电冲击，到为我们的家和设备供电的复杂电路。库仑作为量化这些现象的桥梁，使我们能够计算带电物体之间的力。例如，两个相隔一定距离的电荷将彼此施加力，这可以使用库仑定律进行计算，该定律指出，力与电荷的大小乘积成正比，与它们之间距离的平方成反比。理解库仑对于电容器的研究也至关重要，电容器是存储电能的设备。电容器的电容定义为其每单位电压可以保持的电荷量，以库仑每伏特来衡量。这种关系对于设计需要特定能量存储的电路至关重要，例如在电源和电子设备中。此外，在静电学领域，库仑帮助我们理解带电粒子之间的相互作用。例如，在讨论原子结构时，我们经常提到质子和电子之间的力，这些都是带电粒子。库仑提供了一种量化这些相互作用的方法，使科学家能够预测原子和分子在各种条件下的行为。除了在物理学中的应用外，库仑在工程和技术中也发挥着重要作用。电气工程师使用这个单位来设计和分析电路，确保系统高效且安全地运行。从智能手机到电动汽车，理解库仑背后的原理对技术创新至关重要。此外，随着我们向更节能的世界迈进，库仑在关于可再生能源的讨论中变得越来越相关。例如，太阳能电池板将阳光转化为电能，这些系统的效率可以用每单位阳光产生的库仑来评估。这一测量对于推动旨在减少我们对化石燃料依赖的技术至关重要。总之，库仑不仅仅是一个测量单位；它是现代物理学和工程的基础概念。它的重要性超越了理论应用，通过我们使用的技术影响着我们的日常生活。通过理解库仑，我们深入了解电荷的性质、带电粒子的行为以及支配电气系统的原则。随着我们继续探索和创新电力领域，库仑无疑将继续成为我们理解的基石。