Ohm's law

简明释义

欧姆定律

英英释义

例句

1.When designing circuits, engineers often rely on Ohm's law (欧姆定律) to calculate the necessary resistor values.

在设计电路时，工程师常常依赖Ohm's law(欧姆定律)来计算所需的电阻值。

2.If you double the resistance in a circuit, according to Ohm's law (欧姆定律), the current will halve.

如果你在电路中将电阻加倍，根据Ohm's law(欧姆定律)，电流将减半。

3.In our physics class, we learned that Ohm's law (欧姆定律) states that voltage equals current times resistance.

在我们的物理课上，我们了解到Ohm's law(欧姆定律)表明电压等于电流乘以电阻。

4.Understanding Ohm's law (欧姆定律) is crucial for anyone studying electronics.

理解Ohm's law(欧姆定律)对于任何学习电子学的人来说都是至关重要的。

5.To troubleshoot electrical issues, technicians often refer to Ohm's law (欧姆定律) to find the source of the problem.

为了排查电气问题，技术人员常常参考Ohm's law(欧姆定律)来找到问题的根源。

作文

Ohm's law is one of the fundamental principles in the field of electrical engineering and physics. It describes the relationship between voltage, current, and resistance in an electrical circuit. According to Ohm's law, the current flowing through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance of the conductor. This relationship can be mathematically expressed as V = IR, where V represents voltage, I represents current, and R represents resistance. Understanding Ohm's law is crucial for anyone studying electronics or working with electrical systems.To grasp the significance of Ohm's law, it is essential to break down its components. Voltage, measured in volts, is the electrical potential difference that drives the flow of electric charge. Current, measured in amperes, is the rate at which electric charge flows through a conductor. Resistance, measured in ohms, is the opposition to the flow of current. The interplay between these three elements is what makes electrical circuits function effectively.In practical applications, Ohm's law is used to calculate the necessary values for designing circuits. For instance, if an engineer knows the voltage supply of a circuit and the resistance of the components involved, they can easily calculate the expected current using Ohm's law. This ability to predict current flow is vital for ensuring that circuits operate safely and efficiently, preventing potential overloads that could lead to equipment failure or hazards.Moreover, Ohm's law is not limited to simple circuits; it also applies to complex networks of resistors. In series circuits, the total resistance is the sum of individual resistances, while in parallel circuits, the total resistance can be calculated using the reciprocal formula. These variations still adhere to the principles outlined by Ohm's law, demonstrating its versatility and importance in various electrical configurations.Another important aspect of Ohm's law is its role in troubleshooting electrical problems. When a device fails to operate correctly, understanding Ohm's law allows technicians to measure voltage, current, and resistance to identify the source of the issue. For example, if a light bulb does not illuminate, a technician might check the voltage at the socket and the resistance of the bulb to determine whether the problem lies in the power supply or the bulb itself.In educational settings, Ohm's law serves as a foundational concept that students must master before advancing to more complex topics in electronics. Laboratory experiments often involve applying Ohm's law to real-world scenarios, allowing students to see firsthand how voltage, current, and resistance interact. This hands-on experience reinforces theoretical knowledge and prepares students for future challenges in their careers.In summary, Ohm's law is a crucial principle that underpins much of modern electrical engineering. Its straightforward relationship between voltage, current, and resistance provides the basis for understanding and designing electrical circuits. Whether in academic study or practical application, mastering Ohm's law is essential for anyone involved in the field of electronics. As technology continues to evolve, the relevance of Ohm's law remains steadfast, proving that this principle is timeless and indispensable in our increasingly electrified world.

欧姆定律是电气工程和物理学领域的基本原理之一。它描述了电路中电压、电流和电阻之间的关系。根据欧姆定律，在两个点之间的导体中流动的电流与这两个点之间的电压成正比，与导体的电阻成反比。这个关系可以用数学公式表示为V = IR，其中V代表电压，I代表电流，R代表电阻。理解欧姆定律对于任何学习电子或从事电气系统工作的人来说都是至关重要的。为了理解欧姆定律的重要性，有必要分解其组成部分。电压以伏特为单位，是驱动电荷流动的电势差。电流以安培为单位，是电荷通过导体流动的速率。电阻以欧姆为单位，是对电流流动的阻碍。这三个元素之间的相互作用使电路有效地运作。在实际应用中，欧姆定律用于计算设计电路所需的值。例如，如果工程师知道电路的电压供应和相关组件的电阻，他们可以通过欧姆定律轻松计算出预期的电流。这种预测电流流动的能力对于确保电路安全高效运行至关重要，防止潜在的过载导致设备故障或危险。此外，欧姆定律不仅限于简单电路；它还适用于复杂的电阻网络。在串联电路中，总电阻是各个电阻之和，而在并联电路中，总电阻可以使用倒数公式计算。这些变化仍然遵循欧姆定律所概述的原则，展示了其在各种电气配置中的多样性和重要性。欧姆定律的另一个重要方面是它在故障排除电气问题中的作用。当设备无法正常工作时，理解欧姆定律使技术人员能够测量电压、电流和电阻，以识别问题的来源。例如，如果灯泡不亮，技术人员可能会检查插座的电压和灯泡的电阻，以确定问题是出在电源还是灯泡本身。在教育环境中，欧姆定律作为学生必须掌握的基础概念，才能进一步学习更复杂的电子主题。实验室实验通常涉及将欧姆定律应用于现实场景，使学生能够亲眼看到电压、电流和电阻如何相互作用。这种动手经验加强了理论知识，并为学生未来的挑战做好准备。总之，欧姆定律是现代电气工程的关键原则。它关于电压、电流和电阻之间的简单关系为理解和设计电路提供了基础。无论是在学术研究还是实际应用中，掌握欧姆定律对于任何参与电子领域的人都是必不可少的。随着技术的不断发展，欧姆定律的相关性依然坚定，证明这一原则在我们日益电气化的世界中是永恒且不可或缺的。