alternating electromotive force

简明释义

交变电动势;

英英释义

例句

1.The generator produces a steady alternating electromotive force, which is essential for powering homes.

发电机产生稳定的交变电动势，这对于为家庭供电至关重要。

2.Understanding the concept of alternating electromotive force is crucial for electrical engineering students.

理解交变电动势的概念对于电气工程学生至关重要。

3.In an AC circuit, the alternating electromotive force causes the current to change direction periodically.

在交流电路中，交变电动势使电流周期性地改变方向。

4.The alternating electromotive force in transformers allows for efficient energy transfer between circuits.

变压器中的交变电动势允许在电路之间高效传输能量。

5.Measuring the alternating electromotive force can help diagnose issues in electrical systems.

测量交变电动势可以帮助诊断电气系统中的问题。

作文

The concept of alternating electromotive force refers to the electric potential that varies with time in a sinusoidal manner. This phenomenon is a fundamental aspect of electrical engineering and physics, playing a crucial role in the generation and distribution of electrical energy. In simple terms, alternating electromotive force can be understood as the voltage that changes polarity at regular intervals, typically in a waveform that resembles a sine wave. To appreciate the significance of alternating electromotive force, one must first understand its role in alternating current (AC) systems. Unlike direct current (DC), where the flow of electricity is constant and unidirectional, AC allows for the voltage and current to alternate directions. This characteristic makes AC more efficient for long-distance transmission of electricity. Power plants generate electricity using generators that produce alternating electromotive force, which is then transformed into usable power for homes and industries.The mathematical representation of alternating electromotive force is often expressed as V(t) = V_max * sin(ωt + φ), where V_max is the maximum voltage, ω is the angular frequency, and φ is the phase angle. This equation illustrates how the voltage oscillates over time, reaching a peak value before reversing direction. Understanding this equation is essential for engineers who design circuits and systems that utilize AC power.Furthermore, the study of alternating electromotive force leads to various practical applications. For instance, in the field of electronics, devices such as transformers rely on this principle to step up or step down voltage levels. The efficiency of these devices is paramount, as they enable the safe and effective delivery of electricity to consumers. Without a solid grasp of alternating electromotive force, engineers would struggle to optimize these systems for performance and safety.In addition to its technical aspects, alternating electromotive force has also influenced modern technology in profound ways. The advent of renewable energy sources, such as wind and solar power, has necessitated a deeper understanding of AC systems. As these technologies become more prevalent, the integration of their output into existing power grids requires careful consideration of alternating electromotive force principles. Engineers must ensure that the generated power is compatible with the grid's requirements, which often involves converting DC output from solar panels into AC using inverters that manipulate alternating electromotive force.In conclusion, the term alternating electromotive force encapsulates a vital concept in the realm of electrical engineering. Its influence extends from the basic principles of electricity to advanced applications in modern technology. A thorough understanding of alternating electromotive force is not only essential for professionals in the field but also beneficial for anyone interested in the workings of our increasingly electrified world. As we continue to innovate and explore new energy solutions, the role of alternating electromotive force will undoubtedly remain central to our progress.

交变电动势的概念是指电势随时间以正弦方式变化的现象。这种现象是电气工程和物理学的基本方面，在电能的生成和分配中起着至关重要的作用。简单来说，交变电动势可以理解为在规律的时间间隔内极性变化的电压，通常呈现出类似正弦波的波形。要理解交变电动势的重要性，首先必须了解它在交流电（AC）系统中的作用。与直流电（DC）不同，直流电的电流流动是恒定且单向的，而交流电则允许电压和电流交替方向。这一特性使得交流电在长距离电力传输中更为高效。发电厂使用发电机产生电力，这些发电机产生的就是交变电动势，随后将其转化为家庭和工业所需的可用电力。交变电动势的数学表示通常用方程V(t) = V_max * sin(ωt + φ)来表达，其中V_max是最大电压，ω是角频率，φ是相位角。这个方程说明了电压如何随时间波动，达到峰值后再反向。理解这个方程对设计利用交流电的电路和系统的工程师至关重要。此外，研究交变电动势还导致了各种实际应用。例如，在电子学领域，变压器等设备依赖这一原理来升高或降低电压水平。这些设备的效率至关重要，因为它们使电力能够安全有效地传送给消费者。如果没有对交变电动势的深入理解，工程师将难以优化这些系统的性能和安全性。除了其技术方面，交变电动势也在现代技术中产生了深远的影响。可再生能源，如风能和太阳能的出现，要求人们对交流电系统有更深刻的理解。随着这些技术的日益普及，将它们的输出集成到现有电网中，需要仔细考虑交变电动势的原理。工程师必须确保生成的电力与电网的要求兼容，这通常涉及将太阳能电池板产生的直流电通过逆变器转换为交流电，而逆变器会操控交变电动势。总之，交变电动势这一术语概括了电气工程领域中的一个重要概念。它的影响从电力的基本原理延伸到现代技术中的先进应用。对交变电动势的透彻理解不仅对该领域的专业人士至关重要，也对任何对我们日益电气化的世界运作感兴趣的人有益。随着我们继续创新和探索新的能源解决方案，交变电动势的作用无疑将继续在我们的进步中占据核心地位。