ohm

简明释义

英[əʊm]美[oʊm]

n. 欧姆（电阻单位）

n. （Ohm）人名；（朝）严；（德、英、西、匈、瑞典）奥姆

英英释义

单词用法

同义词

反义词

例句

1.The user attaches ohm magnets to bicycle wheel spokes.

用户重视欧姆磁铁，自行车车轮辐条。

2.Resistance is measured in ohm.

电阻单位等于一百万欧姆。

3.As the wheel spokes turn, the magnets pass the ohm internal coil of wire (dynamo) inducing a current.

随着车轮辐条反过来，磁铁通过内部线圈的电阻丝(发电机)诱导电流。

4.Ohm The ohm is a unit of electrical resistance.

欧姆欧姆是电阻单位。

5.The resistance should be less than one ohm.

电阻单位等于一百万欧姆。

6.The ohm energy device is then placed inside the holder to provide protection from dirt and moisture.

能源设备的欧姆然后置于持有人提供保护的灰尘和湿气。

7.The resistance of the circuit is measured in ohms.

电路的电阻以欧姆为单位测量。

8.A light bulb might have a resistance of 60 ohms.

一个灯泡的电阻可能是60欧姆。

9.You can calculate the total resistance by adding the ohms of each resistor.

你可以通过将每个电阻的欧姆值相加来计算总电阻。

10.In a parallel circuit, the total resistance decreases, measured in ohms.

在并联电路中，总电阻下降，以欧姆为单位。

11.The multimeter can measure voltage, current, and ohms.

万用表可以测量电压、电流和欧姆。

作文

In the world of electronics, understanding the fundamental concepts is crucial for anyone looking to delve deeper into this fascinating field. One such concept is resistance, which is measured in units known as ohm. The term ohm refers to the unit of electrical resistance in the International System of Units (SI). It is named after the German physicist Georg Simon Ohm, who formulated Ohm's Law, a foundational principle in electrical engineering. Ohm's Law 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 of the conductor. This relationship can be expressed with the formula: V = I × R, where V represents voltage, I represents current, and R represents resistance measured in ohm. Understanding ohm is essential for various applications, from designing circuits to troubleshooting electronic devices. For example, when building a simple circuit with a battery, wires, and a light bulb, knowing the resistance of the light bulb in ohm helps determine how much current will flow through it when connected to a specific voltage. If the resistance is too high, the bulb may not light up, while too low a resistance could cause excessive current, potentially damaging the bulb or other components. In practical terms, when engineers design electronic devices, they often need to consider the ohm value of different components. Resistors, for instance, are specifically designed to have a certain resistance measured in ohm, allowing them to control the flow of electricity in a circuit. By using resistors with varying ohm values, engineers can create circuits that perform different functions, such as amplifying signals, filtering noise, or dividing voltages. Moreover, the concept of ohm extends beyond just passive components like resistors. It also applies to active components such as transistors and integrated circuits, where understanding the resistance at different points can influence the overall performance of the device. In radio frequency applications, for instance, impedance, which is a complex form of resistance that includes both ohm and reactance, becomes critical for ensuring efficient signal transmission. The significance of ohm also manifests in everyday life. For instance, when purchasing electrical appliances, consumers often see specifications indicating power consumption in watts, which can be calculated using the ohm concept. Knowing the ohm rating of an appliance allows users to make informed decisions about energy efficiency and safety. In conclusion, the unit of resistance known as ohm plays a vital role in the realm of electronics and electrical engineering. Its importance is evident in both theoretical principles, such as Ohm's Law, and practical applications, from circuit design to consumer electronics. By grasping the concept of ohm, individuals can enhance their understanding of how electrical systems function and how to work effectively within this dynamic field. As technology continues to evolve, the knowledge of ohm and its implications will remain a cornerstone for future innovations in electronics.

在电子世界中，理解基本概念对于任何想要深入研究这一迷人领域的人来说都是至关重要的。其中一个概念是电阻，它以称为ohm的单位进行测量。术语ohm指的是国际单位制（SI）中的电阻单位。它以德国物理学家乔治·西蒙·欧姆的名字命名，他制定了欧姆定律，这是电气工程的基础原则。欧姆定律指出，在两个点之间导体中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。这个关系可以用公式表示：V = I × R，其中V代表电压，I代表电流，R代表以ohm为单位的电阻。 理解ohm对各种应用至关重要，从设计电路到故障排除电子设备。例如，当构建一个简单的电路时，使用电池、导线和灯泡，了解灯泡的电阻值（以ohm为单位）有助于确定在连接到特定电压时将流经灯泡的电流。如果电阻太高，灯泡可能不会亮起，而电阻太低则可能导致过大的电流，可能损坏灯泡或其他组件。 在实际应用中，当工程师设计电子设备时，他们通常需要考虑不同组件的ohm值。例如，电阻器是专门设计成具有特定电阻（以ohm为单位）的元件，使其能够控制电路中的电流流动。通过使用不同ohm值的电阻器，工程师可以创建执行不同功能的电路，例如放大信号、过滤噪声或分压。 此外，ohm的概念不仅限于像电阻器这样的被动组件。它也适用于诸如晶体管和集成电路等主动组件，其中理解不同点的电阻可以影响设备的整体性能。在射频应用中，例如，阻抗是一种复杂的电阻形式，包括ohm和电抗，对于确保信号有效传输至关重要。 ohm的重要性在日常生活中也有所体现。例如，在购买电器时，消费者通常会看到功率消耗以瓦特为单位的规格，这可以使用ohm的概念进行计算。了解电器的ohm额定值使用户能够就能源效率和安全性做出明智的决策。 总之，电阻单位ohm在电子和电气工程领域中扮演着至关重要的角色。其重要性在理论原则（如欧姆定律）和实践应用（从电路设计到消费电子产品）中都显而易见。通过掌握ohm的概念，个人可以增强对电气系统如何运作的理解，以及如何有效地在这一动态领域内工作。随着技术的不断发展，对ohm及其影响的知识将继续成为未来电子创新的基石。