electric conductivity

简明释义

电导率

英英释义

例句

1.The metal used in this circuit has high electric conductivity, which means it allows electricity to flow easily.

这个电路中使用的金属具有高电导率，这意味着它允许电流轻松流动。

2.The electric conductivity of water can vary significantly depending on its mineral content.

水的电导率可以根据其矿物质含量显著变化。

3.Scientists measure the electric conductivity of different materials to determine their suitability for electrical applications.

科学家测量不同材料的电导率以确定其在电气应用中的适用性。

4.Materials with low electric conductivity are often used as insulators to prevent unwanted current flow.

低电导率的材料通常用作绝缘体，以防止不必要的电流流动。

5.Copper is widely used in electrical wiring due to its excellent electric conductivity.

铜因其优良的电导率而被广泛用于电线中。

作文

Electricity is a fundamental aspect of our modern world, powering everything from our homes to our devices. One of the key properties that determines how well materials can conduct electricity is known as electric conductivity. This term refers to the ability of a material to allow the flow of electric current through it. Understanding electric conductivity is crucial not only in physics but also in various engineering applications, including electronics, telecommunications, and energy distribution.Materials can be classified based on their electric conductivity. Conductors, such as copper and aluminum, have high electric conductivity, allowing them to transmit electricity efficiently. Insulators, like rubber and glass, have low electric conductivity, preventing the flow of electric current. Semiconductors, such as silicon, have a moderate level of electric conductivity and are essential in the manufacturing of electronic components like transistors and diodes.The electric conductivity of a material depends on several factors, including its temperature, structure, and the presence of impurities. For instance, as the temperature of a metal increases, its electric conductivity generally decreases due to increased atomic vibrations that impede the flow of electrons. Conversely, in semiconductors, increasing temperature can enhance electric conductivity by allowing more charge carriers to become available for conduction.In practical applications, understanding electric conductivity is vital for designing efficient electrical systems. Engineers must choose materials with appropriate electric conductivity to minimize energy losses and ensure safety. For example, in power transmission lines, materials with high electric conductivity are preferred to reduce resistive losses, which can contribute to significant energy waste.Moreover, the study of electric conductivity extends beyond traditional materials. Researchers are exploring new materials, such as graphene and carbon nanotubes, which exhibit extraordinary electric conductivity properties. These materials hold promise for the development of faster and more efficient electronic devices, potentially revolutionizing technology as we know it.In conclusion, electric conductivity is a critical property that influences how materials interact with electric current. By understanding and manipulating electric conductivity, scientists and engineers can innovate and improve technologies that are integral to our daily lives. As we continue to advance in the field of materials science, the implications of electric conductivity will undoubtedly lead to new discoveries and applications that enhance our understanding of electricity and its role in the modern world.

电力是我们现代世界的一个基本方面，为我们的家居和设备提供动力。决定材料导电能力的关键特性之一被称为电导率。这个术语指的是材料允许电流流动的能力。理解电导率不仅在物理学中至关重要，而且在电子、通信和能源分配等各种工程应用中也至关重要。材料可以根据其电导率进行分类。导体，如铜和铝，具有高电导率，使其能够有效地传输电力。绝缘体，如橡胶和玻璃，具有低电导率，阻止电流的流动。半导体，如硅，具有适度的电导率，在制造电子元件如晶体管和二极管中至关重要。材料的电导率取决于多个因素，包括温度、结构和杂质的存在。例如，随着金属温度的升高，其电导率通常会降低，因为原子振动增加会妨碍电子的流动。相反，在半导体中，温度的升高可以通过允许更多的载流子可用于导电来增强电导率。在实际应用中，理解电导率对设计高效电气系统至关重要。工程师必须选择具有适当电导率的材料，以最小化能量损失并确保安全。例如，在电力传输线路中，优选高电导率的材料以减少电阻损耗，这可能导致显著的能量浪费。此外，电导率的研究超越了传统材料。研究人员正在探索新材料，如石墨烯和碳纳米管，它们表现出非凡的电导率特性。这些材料有望用于开发更快、更高效的电子设备，可能会彻底改变我们所知的技术。总之，电导率是影响材料与电流相互作用的关键特性。通过理解和操控电导率，科学家和工程师可以创新和改善对我们日常生活至关重要的技术。随着我们在材料科学领域的不断进步，电导率的影响无疑将导致新的发现和应用，增强我们对电力及其在现代世界中作用的理解。