electric conductivity

简明释义

导电率

英英释义

例句

1.In semiconductors, the electric conductivity (电导率) can be controlled by adding impurities.

在半导体中，添加杂质可以控制电导率。

2.The electric conductivity (电导率) of a material affects its suitability for various applications.

材料的电导率影响其在各种应用中的适用性。

3.Water has a low electric conductivity (电导率), making it a poor conductor of electricity.

水的电导率很低，使其成为不良的电导体。

4.The metal wire has high electric conductivity (电导率), allowing it to carry a large amount of current.

这根金属线具有高电导率，使其能够承载大量电流。

5.Copper is widely used in electrical wiring due to its excellent electric conductivity (电导率).

由于铜具有优良的电导率，它被广泛用于电线中。

作文

Electricity plays a crucial role in our daily lives, powering everything from our homes to our electronic devices. One of the fundamental properties of materials that affects their ability to conduct electricity is known as electric conductivity. This term refers to the measure of a material's ability to allow the flow of electric current through it. Materials with high electric conductivity can easily transmit electrical energy, while those with low electric conductivity resist the flow of electricity.To understand electric conductivity, it is important to consider the structure of atoms and how they interact with electrons. In conductive materials, such as metals, electrons are loosely bound to their atoms, allowing them to move freely and carry an electric charge. This is why metals like copper and aluminum are commonly used in electrical wiring. Their high electric conductivity ensures that electric current can flow efficiently without significant energy loss.On the other hand, insulators, such as rubber or glass, have very low electric conductivity. The electrons in these materials are tightly bound to their atoms, preventing them from moving freely. This property makes insulators ideal for protecting us from electric shock and ensuring that electricity flows only where it is intended.The concept of electric conductivity is not limited to just metals and insulators. Semiconductors, such as silicon, exhibit unique electric conductivity properties that can be manipulated through the addition of impurities, a process known as doping. This allows semiconductors to conduct electricity under certain conditions, making them essential components in modern electronics, including computers and smartphones.In practical applications, measuring electric conductivity is vital for various industries. For example, in the field of environmental science, assessing the electric conductivity of water can provide insights into its purity and the presence of dissolved salts or contaminants. High levels of electric conductivity in water can indicate pollution, which can have serious implications for ecosystems and human health.Moreover, electric conductivity is also a critical factor in designing electronic circuits and components. Engineers must carefully select materials with appropriate electric conductivity to ensure the efficient operation of devices. This selection process involves balancing factors such as cost, weight, and thermal properties, all while maintaining optimal electric conductivity.In conclusion, understanding electric conductivity is essential for anyone involved in the fields of physics, engineering, and environmental science. It not only explains how electricity flows through different materials but also influences the design and functionality of countless devices we rely on every day. As technology continues to advance, the importance of electric conductivity will only grow, highlighting the need for ongoing research and innovation in this area.

电力在我们的日常生活中扮演着至关重要的角色，为我们的家庭和电子设备提供动力。影响材料导电能力的基本特性之一被称为电导率。这个术语指的是材料允许电流通过的能力的度量。具有高电导率的材料可以轻松传输电能，而低电导率的材料则会抵抗电流的流动。要理解电导率，重要的是考虑原子的结构以及它们如何与电子相互作用。在导电材料中，例如金属，电子与原子的结合较为松散，使它们能够自由移动并携带电荷。这就是为什么铜和铝等金属常用于电线的原因。它们的高电导率确保电流能够高效地流动而不会显著损失能量。另一方面，绝缘体，如橡胶或玻璃，具有非常低的电导率。这些材料中的电子紧密结合在其原子上，阻止它们自由移动。这一特性使得绝缘体成为保护我们免受电击的理想材料，并确保电流仅在预定路径上流动。电导率的概念不仅限于金属和绝缘体。半导体，如硅，表现出独特的电导率特性，可以通过添加杂质进行调节，这一过程被称为掺杂。这使得半导体在某些条件下能够导电，使其成为现代电子产品（包括计算机和智能手机）中不可或缺的组件。在实际应用中，测量电导率对各个行业至关重要。例如，在环境科学领域，评估水的电导率可以提供有关其纯度和溶解盐或污染物存在的见解。水中高水平的电导率可能表明污染，这对生态系统和人类健康有严重影响。此外，电导率也是设计电子电路和组件的重要因素。工程师必须仔细选择适当电导率的材料，以确保设备的高效运行。这个选择过程涉及平衡成本、重量和热性能等因素，同时保持最佳的电导率。总之，理解电导率对任何参与物理、工程和环境科学领域的人来说都是必不可少的。它不仅解释了电如何在不同材料中流动，还影响着我们每天依赖的无数设备的设计和功能。随着技术的不断进步，电导率的重要性只会增加，突显出在这一领域持续研究和创新的必要性。