electric field intensity

简明释义

电场强度

英英释义

例句

1.As the distance from the charge increases, the electric field intensity 电场强度 decreases.

随着离电荷的距离增加，electric field intensity 电场强度 会减小。

2.The electric field intensity 电场强度 can be measured using a device called an electrometer.

可以使用称为电压计的设备来测量electric field intensity 电场强度。

3.The strength of the force on a charged particle is determined by the electric field intensity 电场强度 in the region it occupies.

带电粒子所受力的大小由它所处区域的electric field intensity 电场强度 决定。

4.In a parallel plate capacitor, the electric field intensity 电场强度 between the plates is uniform.

在平行板电容器中，两个板之间的electric field intensity 电场强度 是均匀的。

5.Engineers must calculate the electric field intensity 电场强度 when designing circuits to ensure safety.

工程师在设计电路时必须计算electric field intensity 电场强度 以确保安全。

作文

Electric fields are a fundamental concept in physics, playing a crucial role in understanding how charged particles interact with one another. One of the key parameters used to describe electric fields is electric field intensity, which measures the strength of an electric field at a given point in space. The electric field intensity is defined as the force experienced by a unit positive charge placed in the field, and it is represented by the symbol E. This concept is not only essential for theoretical physics but also has practical applications in various fields such as engineering, telecommunications, and medical technology.To better understand electric field intensity, we can consider its mathematical representation. The electric field intensity can be expressed using Coulomb's law, which states that the force F between two point charges is proportional to the product of their charges (q1 and q2) and inversely proportional to the square of the distance (r) between them. Mathematically, this can be written as:F = k * (q1 * q2) / r²,where k is Coulomb's constant. From this relationship, we can derive the electric field intensity as follows:E = F/q,where q is the charge experiencing the force. This equation shows that the electric field intensity is dependent on both the force acting on a charge and the magnitude of that charge.In practical terms, the value of electric field intensity can vary significantly depending on the configuration of the charges producing the field. For instance, in a uniform electric field, such as that created between two parallel plates, the electric field intensity remains constant throughout the region between the plates. However, in the case of point charges, the electric field intensity diminishes with distance, following an inverse square law. This means that as you move away from a charged object, the strength of the electric field decreases rapidly.Understanding electric field intensity is vital for many technologies that we use every day. For example, in telecommunications, the design of antennas and transmission lines relies heavily on the principles of electric fields. Engineers must calculate the electric field intensity to ensure efficient signal transmission and reception. Similarly, in medical technology, devices such as electrocardiograms (ECGs) and electroencephalograms (EEGs) utilize the principles of electric fields to monitor the electrical activity of the heart and brain, respectively.Moreover, the concept of electric field intensity is also significant in safety considerations. High electric field intensity regions can pose risks to human health, especially in industrial settings where high-voltage equipment is used. Understanding the distribution and intensity of electric fields allows engineers and safety professionals to implement protective measures to minimize exposure to hazardous conditions.In conclusion, electric field intensity is a vital concept in the study of electric fields, providing insight into the interactions between charged particles and their environments. Its mathematical representation and practical applications underscore its importance in various scientific and engineering disciplines. As we continue to explore and harness the power of electricity, a solid understanding of electric field intensity will remain essential for innovation and safety in our increasingly electrified world.

电场是物理学中的一个基本概念，在理解带电粒子之间的相互作用中发挥着至关重要的作用。描述电场的关键参数之一是电场强度，它测量了在特定空间点上电场的强度。电场强度定义为放置在电场中的单位正电荷所经历的力，并用符号E表示。这个概念不仅对理论物理至关重要，而且在工程、通信和医疗技术等多个领域有实际应用。为了更好地理解电场强度，我们可以考虑它的数学表示。电场强度可以使用库仑定律来表达，该定律指出两个点电荷之间的力F与它们的电荷（q1和q2）的乘积成正比，与它们之间距离（r）的平方成反比。数学上，可以写作：F = k * (q1 * q2) / r²，其中k是库仑常数。从这个关系中，我们可以推导出电场强度：E = F/q，其中q是经历力的电荷。这个方程表明，电场强度依赖于作用在电荷上的力和该电荷的大小。在实际应用中，电场强度的值可能因产生电场的电荷配置而显著变化。例如，在均匀电场中，例如两个平行板之间产生的电场，电场强度在板之间的区域保持恒定。然而，在点电荷的情况下，电场强度随着距离的增加而减小，遵循反平方定律。这意味着，当你远离带电物体时，电场的强度迅速减弱。理解电场强度对于我们日常使用的许多技术至关重要。例如，在通信领域，天线和传输线的设计在很大程度上依赖于电场的原理。工程师必须计算电场强度以确保信号的有效传输和接收。同样，在医疗技术中，心电图（ECG）和脑电图（EEG）等设备利用电场的原理监测心脏和大脑的电活动。此外，电场强度的概念在安全考虑中也具有重要意义。高电场强度区域可能对人类健康构成风险，尤其是在使用高压设备的工业环境中。理解电场的分布和强度使工程师和安全专业人员能够实施保护措施，以最小化对危险条件的暴露。总之，电场强度是电场研究中的一个重要概念，为我们提供了关于带电粒子及其环境之间相互作用的深入见解。它的数学表示和实际应用突显了其在各个科学和工程学科中的重要性。随着我们继续探索和利用电力，对电场强度的扎实理解将对我们日益电气化的世界中的创新和安全至关重要。