specific resistance

简明释义

比阻

英英释义

例句

1.The material's specific resistance is crucial for determining its suitability in electrical applications.

材料的特定电阻对于确定其在电气应用中的适用性至关重要。

2.Measuring the specific resistance of different materials can reveal their potential uses.

测量不同材料的特定电阻可以揭示它们的潜在用途。

3.In physics, specific resistance helps us understand how well a substance can conduct electricity.

在物理学中，特定电阻帮助我们理解一种物质能多好地导电。

4.The specific resistance of copper makes it a popular choice for electrical wiring.

铜的特定电阻使其成为电线的热门选择。

5.To improve efficiency, engineers often look for materials with low specific resistance.

为了提高效率，工程师通常寻找具有低特定电阻的材料。

作文

In the field of physics and engineering, the term specific resistance refers to a material's ability to resist the flow of electric current. This property is crucial in understanding how different materials behave when subjected to electrical forces. The specific resistance of a substance is quantified in ohm-meters (Ω·m) and is an essential factor in designing electrical circuits and systems. When we talk about specific resistance, we often compare it with conductivity, which is the measure of a material's ability to conduct electric current. The relationship between these two properties is inversely proportional; that is, a material with high specific resistance will have low conductivity and vice versa. For instance, rubber has a high specific resistance, making it an excellent insulator, while copper has a low specific resistance, making it a good conductor. Understanding specific resistance is not only important for electrical engineers but also for various applications in everyday life. For example, in the design of household wiring, engineers must choose materials with suitable specific resistance to ensure safety and efficiency. If the specific resistance of the wiring material is too low, it may lead to excessive current flow, resulting in overheating and potential fire hazards. Conversely, if the specific resistance is too high, the wires may not be able to carry sufficient current to power appliances effectively. Moreover, the specific resistance of materials can vary significantly based on temperature and other environmental factors. For instance, metals typically exhibit decreased specific resistance at higher temperatures, while semiconductors may show increased specific resistance. This variability must be considered when selecting materials for specific applications, especially in environments subject to fluctuating temperatures. In addition to its applications in electrical engineering, specific resistance also plays a vital role in materials science. Researchers study the specific resistance of new materials to determine their suitability for various technological advancements. For example, the development of superconductors, which have zero specific resistance, has opened up new possibilities for energy transmission and storage. Understanding the principles behind specific resistance allows scientists to innovate and create materials that can revolutionize industries. In conclusion, the concept of specific resistance is fundamental to both electrical engineering and materials science. It influences the design and functionality of electrical systems and provides insight into the behavior of materials under electrical stress. As technology continues to advance, the importance of understanding specific resistance will only grow, paving the way for safer, more efficient, and innovative solutions in various fields. Therefore, a solid grasp of specific resistance is essential for anyone looking to excel in these disciplines.

在物理和工程领域，术语特定电阻指的是材料抵抗电流流动的能力。这一特性对于理解不同材料在电力作用下的表现至关重要。材料的特定电阻以欧姆米（Ω·m）为单位进行量化，是设计电路和系统的重要因素。当我们谈论特定电阻时，通常会将其与导电性进行比较，导电性是衡量材料导电能力的指标。这两个属性之间的关系是反比的；也就是说，具有高特定电阻的材料将具有低导电性，反之亦然。例如，橡胶具有高特定电阻，使其成为优良的绝缘体，而铜则具有低特定电阻，使其成为良好的导体。理解特定电阻不仅对电气工程师重要，也对日常生活中的各种应用至关重要。例如，在家庭布线设计中，工程师必须选择具有合适特定电阻的材料，以确保安全和效率。如果布线材料的特定电阻过低，可能导致过多的电流流动，从而导致过热和潜在的火灾隐患。相反，如果特定电阻过高，电线可能无法有效地传输足够的电流来供电给电器。此外，材料的特定电阻可能会因温度和其他环境因素而显著变化。例如，金属通常在高温下表现出降低的特定电阻，而半导体可能表现出增加的特定电阻。在选择特定应用的材料时，必须考虑这种可变性，特别是在面临温度波动的环境中。除了在电气工程中的应用外，特定电阻在材料科学中也发挥着重要作用。研究人员研究新材料的特定电阻以确定其在各种技术进步中的适用性。例如，超导体的开发具有零特定电阻，为能源传输和存储开辟了新的可能性。理解特定电阻背后的原理使科学家能够创新并创造出可以革新各个行业的材料。总之，特定电阻的概念对于电气工程和材料科学都是基础性的。它影响电气系统的设计和功能，并提供关于材料在电力压力下行为的见解。随着技术的不断进步，理解特定电阻的重要性只会增加，为各个领域提供更安全、更高效和创新的解决方案。因此，深入掌握特定电阻对于任何希望在这些学科中脱颖而出的人来说都是至关重要的。