electric conductance

简明释义

电导率

英英释义

例句

1.A material with high electric conductance 电导率 is ideal for electrical wiring.

具有高电导率 electric conductance的材料非常适合用于电线。

2.We calculated the electric conductance 电导率 to determine the quality of the water.

我们计算了水的电导率 electric conductance以确定水的质量。

3.The electric conductance 电导率 of a solution can change with temperature.

溶液的电导率 electric conductance可能会随温度变化。

4.The electric conductance 电导率 of copper is much higher than that of rubber.

铜的电导率 electric conductance远高于橡胶。

5.In this experiment, we will measure the electric conductance 电导率 of various liquids.

在这个实验中，我们将测量各种液体的电导率 electric conductance。

作文

Electricity is a fundamental aspect of modern life, powering everything from our homes to our devices. One of the key concepts in understanding how electricity works is electric conductance, which refers to the ability of a material to conduct electric current. This property is crucial in various applications, including electrical engineering, electronics, and even in biological systems. In this essay, we will explore the definition of electric conductance, its significance, and its practical implications.To begin with, electric conductance can be defined as the measure of how easily electric current can flow through a material. It is the reciprocal of electrical resistance, which means that materials with high electric conductance have low resistance and vice versa. The unit of electric conductance is the siemens (S), named after the German engineer Ernst Werner von Siemens. Conductance depends on several factors, including the material's intrinsic properties, temperature, and the physical dimensions of the conductor.Materials can be broadly classified into three categories based on their electric conductance: conductors, insulators, and semiconductors. Conductors, such as copper and aluminum, have high electric conductance, allowing them to carry electric current efficiently. This is why they are commonly used in electrical wiring and circuits. On the other hand, insulators like rubber and glass have very low electric conductance, making them ideal for preventing the flow of electricity and protecting users from electric shock.Semiconductors, such as silicon, have a moderate level of electric conductance and can be manipulated to control the flow of electricity. This unique property makes semiconductors essential in the manufacturing of electronic components like diodes and transistors, which are the building blocks of modern electronic devices. By adjusting their electric conductance through doping, engineers can create materials that either conduct electricity well or resist it, depending on the desired application.The significance of electric conductance extends beyond just understanding materials. It plays a vital role in designing and optimizing electrical systems. For instance, when engineers design circuits, they must consider the electric conductance of the materials used to ensure efficient energy transfer and minimal power loss. High electric conductance materials are preferred in applications where speed and efficiency are critical, such as in high-frequency communication systems.Moreover, electric conductance is not limited to man-made materials; it also occurs in biological systems. For example, nerve cells rely on the electric conductance of ions across their membranes to transmit signals throughout the body. Understanding this biological electric conductance is crucial for medical research and can lead to advancements in treating neurological disorders.In conclusion, electric conductance is a fundamental property that underpins the functioning of electrical systems and devices. Its understanding is essential for engineers, scientists, and anyone interested in the field of electricity and electronics. As technology continues to advance, the importance of electric conductance will only grow, paving the way for innovations that rely on efficient energy transfer and management. Whether in everyday appliances or cutting-edge technology, electric conductance remains a cornerstone of our electrical landscape.

电力是现代生活的一个基本方面，为我们的家居和设备提供动力。理解电力工作原理的关键概念之一是电导率，指的是材料导电流的能力。这个特性在电气工程、电子学甚至生物系统等各种应用中至关重要。在这篇文章中，我们将探讨电导率的定义、其重要性及其实际意义。首先，电导率可以定义为电流通过材料的容易程度的度量。它是电阻的倒数，这意味着具有高电导率的材料具有低电阻，反之亦然。电导率的单位是西门子（S），以德国工程师恩斯特·西门子命名。导电性取决于多个因素，包括材料的内在属性、温度和导体的物理尺寸。材料可以根据其电导率大致分为三类：导体、绝缘体和半导体。导体，如铜和铝，具有高电导率，使它们能够高效地传导电流。这就是为什么它们通常用于电线和电路的原因。另一方面，像橡胶和玻璃这样的绝缘体具有非常低的电导率，使它们成为防止电流流动和保护用户免受电击的理想材料。半导体，如硅，具有适度的电导率，可以被操控以控制电流的流动。这种独特的特性使半导体在制造电子元件（如二极管和晶体管）中至关重要，这些元件是现代电子设备的基石。通过掺杂调整它们的电导率，工程师可以创造出既能良好导电又能抗电流的材料，具体取决于所需的应用。电导率的重要性不仅限于理解材料。它在设计和优化电气系统中扮演着重要角色。例如，当工程师设计电路时，他们必须考虑所用材料的电导率，以确保高效的能量转移和最小的功率损耗。在速度和效率至关重要的应用中，例如在高频通信系统中，高电导率材料是首选。此外，电导率不仅限于人造材料；它也发生在生物系统中。例如，神经细胞依赖于离子穿过其膜的电导率来传递信号。理解这种生物电导率对于医学研究至关重要，并可能导致治疗神经疾病的进展。总之，电导率是支撑电气系统和设备功能的基本特性。理解这一点对工程师、科学家以及任何对电力和电子领域感兴趣的人来说都是必不可少的。随着技术的不断进步，电导率的重要性将只会增加，为依赖高效能量转移和管理的创新铺平道路。无论是在日常电器还是尖端技术中，电导率始终是我们电气环境的基石。