electric conductor

简明释义

导电体

英英释义

例句

1.Silver is the best known electric conductor 电导体, but it is expensive.

银是已知的最佳电导体，但它价格昂贵。

2.In electronics, a good electric conductor 电导体 is essential for efficient circuit design.

在电子学中，良好的电导体对于高效的电路设计至关重要。

3.Aluminum is a lightweight electric conductor 电导体 often used in overhead power lines.

铝是一种轻质的电导体，常用于架空电力线路。

4.Copper is one of the most widely used electric conductors 电导体 in electrical wiring.

铜是电气布线中最广泛使用的电导体。

5.The resistance of an electric conductor 电导体 can affect the performance of electrical devices.

一个电导体的电阻会影响电气设备的性能。

作文

Electricity is a fundamental part of modern life, powering everything from our homes to our devices. At the core of this phenomenon lies the concept of an electric conductor, which plays a crucial role in the transmission of electrical energy. An electric conductor is a material that allows the flow of electric charge, typically in the form of electrons. Metals such as copper and aluminum are common examples of electric conductors, as they possess free electrons that can move easily through the material. This property makes them ideal for use in electrical wiring and components.The importance of electric conductors cannot be overstated. They are essential in creating circuits, which are pathways for electricity to travel. Without electric conductors, our ability to use electricity would be severely limited. For instance, when you flip a light switch, you are completing a circuit that allows electricity to flow through the electric conductor wires, illuminating the bulb. This simple act illustrates how integral electric conductors are to our daily lives.Different materials have varying levels of conductivity. Conductivity refers to how easily electric charge can move through a material. Silver is the best electric conductor, but due to its cost, it is often replaced by copper in most applications. Copper not only offers excellent conductivity but is also relatively affordable and widely available. This makes it the preferred choice for electrical wiring in homes and industries.In contrast, materials like rubber and glass are considered insulators because they do not allow electric charge to flow freely. Understanding the difference between conductors and insulators is vital for anyone working with electricity. Insulators are used to protect us from electric shocks, ensuring that the current flows only where it is intended. For example, the plastic coating around wires serves as an insulator, preventing accidental contact with the electric conductor inside.The study of electric conductors is not just limited to practical applications; it also extends into theoretical physics. Scientists explore the behavior of electric conductors at the atomic level, seeking to understand how different factors affect conductivity. Temperature, for instance, can significantly impact a conductor's performance. As temperature increases, the atoms in a conductor vibrate more, potentially hindering the flow of electrons. This phenomenon is known as resistance, and it is a critical consideration in designing electrical systems.Moreover, advancements in technology have led to the development of superconductors—materials that can conduct electricity without resistance at very low temperatures. Superconductors have the potential to revolutionize the way we generate and transmit electricity, leading to more efficient power systems. Researchers are continually investigating new materials that could serve as electric conductors at higher temperatures, which would make their use more practical and widespread.In conclusion, electric conductors are indispensable components of our electrical systems. Their ability to facilitate the flow of electricity underpins countless technologies that define modern living. As we continue to innovate and explore new materials, the role of electric conductors will only become more significant, paving the way for a future where electricity is used more efficiently and sustainably.

电力是现代生活的基本组成部分，为我们的家庭和设备提供动力。在这一现象的核心是“电导体”的概念，它在电能传输中扮演着至关重要的角色。“电导体”是一种允许电荷流动的材料，通常以电子的形式存在。铜和铝等金属是常见的“电导体”示例，因为它们具有可以轻松通过材料移动的自由电子。这一特性使它们成为电缆和组件的理想选择。“电导体”的重要性不容小觑。它们在创建电路中是必不可少的，电路是电流流动的路径。如果没有“电导体”，我们使用电力的能力将受到严重限制。例如，当你按下灯开关时，你正在完成一个电路，允许电流通过“电导体”线路，点亮灯泡。这一简单的行为说明了“电导体”在我们日常生活中的重要性。不同材料的导电性水平各不相同。导电性指的是电荷在材料中流动的容易程度。银是最佳的“电导体”，但由于其成本，通常在大多数应用中被铜替代。铜不仅提供优良的导电性，而且相对便宜且广泛可用。这使得它成为家庭和工业电缆的首选。相比之下，像橡胶和玻璃这样的材料被视为绝缘体，因为它们不允许电荷自由流动。理解导体和绝缘体之间的区别对任何与电力打交道的人来说都是至关重要的。绝缘体用于保护我们免受电击，确保电流仅在预定位置流动。例如，电线周围的塑料涂层作为绝缘体，防止意外接触内部的“电导体”。对“电导体”的研究不仅限于实际应用；它还延伸到理论物理学。科学家们探讨“电导体”在原子级别的行为，试图理解不同因素如何影响导电性。温度就是一个显著影响导体性能的因素。随着温度的升高，导体中的原子振动得更激烈，可能阻碍电子的流动。这种现象称为电阻，它是设计电气系统时必须考虑的关键因素。此外，技术的进步导致超导体的开发——在非常低的温度下可以无阻力地导电的材料。超导体有潜力彻底改变我们发电和传输电力的方式，从而导致更高效的电力系统。研究人员不断探索可以在更高温度下作为“电导体”的新材料，这将使它们的使用更加实用和广泛。总之，“电导体”是我们电气系统不可或缺的组成部分。它们促进电流流动的能力支撑着无数定义现代生活的技术。随着我们不断创新和探索新材料，“电导体”的作用只会变得更加重要，为一个更高效和可持续利用电力的未来铺平道路。