direct current electromotive force

简明释义

直流电动势

英英释义

例句

1.The battery provides a constant direct current electromotive force to power the flashlight.

电池提供了一个恒定的直流电动势来为手电筒供电。

2.In this circuit, the direct current electromotive force is crucial for maintaining a steady current flow.

在这个电路中，直流电动势对于维持稳定的电流流动至关重要。

3.The direct current electromotive force generated by the generator powers the entire factory.

发电机产生的直流电动势为整个工厂供电。

4.A multimeter can be used to measure the direct current electromotive force in a circuit.

万用表可用于测量电路中的直流电动势。

5.We measured the direct current electromotive force across the terminals of the solar panel.

我们测量了太阳能电池板端子上的直流电动势。

作文

Understanding the concept of direct current electromotive force is essential for anyone interested in electrical engineering and physics. The term refers to the voltage generated by a source that drives an electric current in a circuit. Specifically, direct current electromotive force (often abbreviated as EMF) is associated with direct current (DC), which flows in a single direction. This characteristic makes DC particularly useful for various applications, such as powering electronic devices, batteries, and solar panels.To grasp the significance of direct current electromotive force, one must first understand the principles of electricity. Voltage, or electric potential difference, is what pushes electric charge through a conductor. In the case of direct current electromotive force, this push comes from a constant voltage source, such as a battery. The battery converts chemical energy into electrical energy, creating a steady flow of electrons that constitutes the DC.The importance of direct current electromotive force can be seen in numerous everyday applications. For instance, most household batteries provide a direct current electromotive force that powers small devices like remote controls, flashlights, and toys. Additionally, many renewable energy systems, such as solar panels, generate DC electricity, which can be stored in batteries for later use. Understanding how direct current electromotive force works allows engineers to design more efficient power systems and improve energy storage technologies.In practical terms, measuring direct current electromotive force is crucial for analyzing electrical circuits. Engineers often use multimeters to measure the EMF in a circuit, which helps them determine if the system is functioning correctly. If the measured EMF is lower than expected, it may indicate issues such as a failing battery or resistance in the circuit that needs to be addressed.Moreover, the concept of direct current electromotive force is also vital in understanding Ohm's Law, which states that 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. This relationship underscores the importance of EMF in circuit design and analysis, as it influences how much current will flow based on the resistance present in the circuit.In conclusion, the term direct current electromotive force encapsulates a fundamental aspect of electrical engineering and physics. Its role in generating and maintaining electric current is critical for countless applications in our modern world. By mastering the principles surrounding direct current electromotive force, individuals can better understand the intricacies of electrical systems and contribute to advancements in technology and energy efficiency. As we continue to innovate and develop new energy solutions, the knowledge of how direct current electromotive force operates will remain a cornerstone of electrical engineering education and practice.

理解直流电动势这一概念对于任何对电气工程和物理学感兴趣的人来说都是至关重要的。这个术语指的是由电源产生的电压，它推动电路中的电流。具体来说，直流电动势（通常缩写为EMF）与直流电（DC）相关，直流电是指电流以单一方向流动。这一特性使得直流电在各种应用中变得特别有用，例如为电子设备、电池和太阳能电池板供电。要理解直流电动势的重要性，首先必须了解电力的基本原理。电压或电位差是推动电荷通过导体的力量。在直流电动势的情况下，这种推动来自一个恒定电压源，如电池。电池将化学能转化为电能，产生稳定的电子流，从而构成直流电。直流电动势的重要性可以在许多日常应用中看到。例如，大多数家庭电池提供的直流电动势为遥控器、手电筒和玩具等小型设备供电。此外，许多可再生能源系统，如太阳能电池板，产生直流电，可以储存在电池中以备后用。理解直流电动势的工作原理使工程师能够设计更高效的电力系统，并改善能源存储技术。在实际应用中，测量直流电动势对于分析电路至关重要。工程师通常使用万用表来测量电路中的EMF，这有助于他们确定系统是否正常运行。如果测得的EMF低于预期，则可能表明电池故障或电路中存在需要解决的阻抗问题。此外，直流电动势的概念在理解欧姆定律中也至关重要，欧姆定律指出，流经导体的电流与两点之间的电压成正比，与电路中的电阻成反比。这一关系强调了EMF在电路设计和分析中的重要性，因为它影响着在电路中根据电阻的存在流过多少电流。总之，直流电动势这一术语概括了电气工程和物理学的一个基本方面。它在产生和维持电流中的作用对我们现代世界中的无数应用至关重要。通过掌握围绕直流电动势的原理，个人可以更好地理解电气系统的复杂性，并为技术和能源效率的进步做出贡献。随着我们继续创新和开发新的能源解决方案，了解直流电动势的运作将始终是电气工程教育和实践的基石。