electric potential

简明释义

电势；电位

英英释义

例句

1.The battery provides a constant electric potential 电势 that powers the device.

电池提供了一个恒定的电势 electric potential，为设备供电。

2.The electric potential 电势 at the surface of a charged conductor is constant.

带电导体表面的电势 electric potential是恒定的。

3.Understanding electric potential 电势 is essential for designing electrical systems.

理解电势 electric potential对于设计电气系统至关重要。

4.In a circuit, the difference in electric potential 电势差 between two points drives the current.

在电路中，两个点之间的电势差 electric potential推动电流流动。

5.A voltmeter measures the electric potential 电势 difference between two points in a circuit.

电压表测量电路中两点之间的电势 electric potential差。

作文

Electric potential is a fundamental concept in the field of physics, particularly in electromagnetism. It refers to the amount of electric potential energy per unit charge at a specific point in an electric field. Understanding electric potential (电势) is crucial for comprehending how electric fields operate and how they influence charged particles. To begin with, the concept of electric potential (电势) can be understood through the analogy of gravitational potential energy. Just as a rock at a certain height has gravitational potential energy due to its position in a gravitational field, a charged particle in an electric field possesses electric potential (电势) energy based on its location within that field. The higher the potential, the more energy a charged particle will have when it is allowed to move freely. In practical terms, electric potential (电势) is measured in volts (V). One volt is defined as one joule of energy per coulomb of charge. This means that if a charged particle moves through an electric field and experiences a change in electric potential (电势), it will either gain or lose energy depending on the direction of its movement. If it moves from a region of high electric potential (电势) to a region of low electric potential (电势), it loses energy, which can be converted into kinetic energy, causing the particle to accelerate. Conversely, moving from low to high electric potential (电势) requires energy input. The mathematical representation of electric potential (电势) is given by the formula V = U/Q, where V is the electric potential (电势), U is the electric potential energy, and Q is the charge. This equation illustrates the direct relationship between the potential energy and the charge of the particle. Furthermore, the electric potential (电势) at a point in space can be calculated using the integral of the electric field over distance, which highlights the connection between these two concepts. Another important aspect of electric potential (电势) is its role in circuits. When dealing with electrical circuits, we often talk about voltage, which is essentially the difference in electric potential (电势) between two points. This difference drives the flow of electric current through the circuit. For instance, in a simple circuit with a battery, the battery creates a difference in electric potential (电势) that causes electrons to flow from the negative terminal to the positive terminal, powering devices along the way. Moreover, understanding electric potential (电势) is vital for various applications, including designing electrical equipment, understanding electrostatics, and even in medical technologies like electrocardiograms (ECGs). In summary, electric potential (电势) is a key concept that not only helps us understand the behavior of charged particles in electric fields but also serves as the foundation for many technological advancements. Its implications are vast and significant, making it an essential topic of study in both physics and engineering.

电势是物理学，特别是电磁学领域的一个基本概念。它指的是在电场中特定点上的单位电荷的电势能量。理解电势（electric potential）对理解电场的运作及其对带电粒子的影响至关重要。首先，电势（electric potential）的概念可以通过重力势能的类比来理解。就像一块处于一定高度的岩石由于其在重力场中的位置而具有重力势能一样，电场中的带电粒子也因其在该场中的位置而具有电势（electric potential）能量。电势越高，带电粒子的能量就越多，当它被允许自由移动时。在实际应用中，电势（electric potential）用伏特（V）来衡量。一个伏特被定义为每库仑电荷一焦耳的能量。这意味着，如果带电粒子在电场中移动并经历电势（electric potential）的变化，它将根据运动方向获得或失去能量。如果它从高电势（electric potential）区域移动到低电势（electric potential）区域，则会失去能量，这可以转化为动能，使粒子加速。相反，从低到高电势（electric potential）则需要能量输入。电势（electric potential）的数学表示由公式V = U/Q给出，其中V是电势（electric potential），U是电势能，Q是电荷。这个方程说明了电势能与粒子电荷之间的直接关系。此外，空间中某一点的电势（electric potential）可以通过沿距离积分电场来计算，这突显了这两个概念之间的联系。电势（electric potential）的另一个重要方面是其在电路中的作用。在处理电路时，我们常常谈论电压，这实际上是两点之间的电势（electric potential）差。这种差异驱动电流在电路中流动。例如，在一个简单的电路中，电池在两个端子之间产生电势（electric potential）差，导致电子从负端流向正端，同时为设备供电。此外，理解电势（electric potential）对于各种应用至关重要，包括设计电气设备、理解静电学，甚至在医疗技术如心电图（ECG）中。在总结中，电势（electric potential）是一个关键概念，不仅帮助我们理解带电粒子在电场中的行为，而且作为许多技术进步的基础。其影响广泛而重要，使其成为物理和工程学研究的基本主题。