equivalant resistance

简明释义

等效电阻

英英释义

Equivalent resistance is the total resistance of a circuit or a portion of a circuit that can be replaced by a single resistor without changing the current or voltage in the circuit.

等效电阻是指在电路或电路某部分中,可以用一个单一电阻替代的总电阻,而不改变电路中的电流或电压。

例句

1.To simplify complex circuits, engineers often use the concept of equivalent resistance 等效电阻 to make calculations easier.

为了简化复杂电路,工程师通常使用equivalent resistance等效电阻的概念来简化计算。

2.In a circuit with multiple branches, calculating the equivalent resistance 等效电阻 allows for a better understanding of how current flows.

在一个有多个分支的电路中,计算equivalent resistance等效电阻可以更好地理解电流的流动方式。

3.Understanding equivalent resistance 等效电阻 helps students grasp the principles of Ohm's Law more effectively.

理解equivalent resistance等效电阻有助于学生更有效地掌握欧姆定律的原理。

4.When two resistors are in parallel, the formula for calculating the equivalent resistance 等效电阻 involves taking the reciprocal of the sum of the reciprocals of each resistor.

当两个电阻并联时,计算equivalent resistance等效电阻的公式涉及到取每个电阻倒数的和的倒数。

5.In a series circuit, the total voltage is equal to the sum of the voltages across each component, and the total equivalent resistance 等效电阻 can be calculated by adding all individual resistances.

在串联电路中,总电压等于每个组件上的电压之和,总的equivalent resistance等效电阻可以通过将所有单个电阻相加来计算。

作文

In the study of electrical circuits, one of the fundamental concepts is that of equivalent resistance (等效电阻). This concept is crucial for understanding how different resistors in a circuit can affect the overall current and voltage. When resistors are connected in series or parallel, the way they combine can significantly alter the resistance experienced by the entire circuit. In a series circuit, the total or equivalent resistance (等效电阻) is simply the sum of all individual resistances. For example, if we have three resistors with values of 2 ohms, 3 ohms, and 5 ohms connected in series, the equivalent resistance (等效电阻) would be 2 + 3 + 5 = 10 ohms. This means that the total resistance faced by the current flowing through the circuit is 10 ohms. The significance of this is that it directly affects how much current will flow according to Ohm's Law, which states that current is equal to voltage divided by resistance (I = V/R). Therefore, as the equivalent resistance (等效电阻) increases, the current decreases if the voltage remains constant.On the other hand, when resistors are connected in parallel, the calculation for equivalent resistance (等效电阻) changes. The formula for finding the equivalent resistance (等效电阻) in a parallel circuit is given by the reciprocal of the sum of the reciprocals of each individual resistance. For instance, if we have two resistors in parallel, one with a resistance of 4 ohms and another with 6 ohms, the equivalent resistance (等效电阻) can be calculated as follows: 1/R_total = 1/4 + 1/6. To solve this, we first find a common denominator, which is 12. Thus, 1/R_total = 3/12 + 2/12 = 5/12. By taking the reciprocal, we find that R_total = 12/5, which simplifies to 2.4 ohms. This lower equivalent resistance (等效电阻) indicates that the total current flowing through the circuit will be higher compared to a series configuration, assuming the same voltage is applied.Understanding equivalent resistance (等效电阻) is essential for engineers and technicians who design electrical systems. It allows them to predict how circuits will behave under various conditions, ensuring that devices function correctly and efficiently. For example, in designing a circuit for a complex electronic device, knowing the equivalent resistance (等效电阻) helps in selecting appropriate power supplies and ensuring that components do not exceed their rated limits.Moreover, the concept of equivalent resistance (等效电阻) extends beyond simple resistor combinations. In more complex circuits involving capacitors and inductors, the overall impedance can also be analyzed using similar principles. This broader understanding is vital for troubleshooting and optimizing circuit performance.In conclusion, the concept of equivalent resistance (等效电阻) is a cornerstone of electrical engineering and physics. It provides a simplified way to analyze complex circuits and predict their behavior. Whether in academic studies or practical applications, mastering this concept is key to understanding the flow of electricity and the operation of various electronic devices.