串联电阻
并联电阻备忘表
...ent of resistivity: 对于纯电阻的器件,功耗是用i2xr的乘积来计算的。由于产品中所有这些分量都是真实值,电阻消耗的功率将是一个实功率。因此,提供给理想电阻的电源被充分利用。 什么是电抗(reactance)? 电抗是数学中的一个...
串联与并联电路 电路可以用许多方法建立。电阻、二极管、开关等电子器件是放置在电路结构中的元件。这些元件的放置对电路的运行至关重要,因为不同的设置会产生不同的输出、结果或目的。两种最简单的电子或电气连接...
...g downwards, and so there will be an upward resistive force on the paper. 如何计算物体在空中缓慢下落时的空气阻力 For objects which move slowly relative to the air (such as falling dust particles), the resistive force is directly proportional to the object’s velocity relative...
...t and causes the object to move through a displacement in a direction parallel to its line of action, as shown below: How to Calculate Work Done – Displacement Parallel to Line of Action Then, the work done is given by, 现在考虑力与物**移成一定角度的情况。例如,把割...
...电阻的变化。阻抗不仅包括电阻,还包括电抗:描述元件如何抵抗电流变化的特性,如交流电路中的电流变化。 什么是抵抗(resistance)? Resistance is defined as the ratio of potential difference across a component to the current through that component:...
...of a capacitor to the potential difference across the capacitor. If the parallel plates have a surface area each, and they are separated by a distance with a dielectric with a permittivity between them, then the capacitance of the plates is given by The energy stored in a capacitor w...
...o show that the resonance frequency is given by: 什么是平行共振(parallel resonance)? 并联谐振发生在电感和电容并联的电路中,如下所示: A parallel RLC circuit Since impedances do not add up in the same way in parallel circuits as they do in series circuits, a quant...
... 磁场 静电场 串联 所有串联元件的电流相同。 电压分布在串联的元件上。 并联 电流分布在并联的元件上。 ...
... 抵抗 它的电阻相对较低 它有很高的电阻 使用 它用来计算电路中流过的电流量 它用来求电路中的电位差 电路 必须断开电路才能连接电流表 电路不需要断开 准确度 被认为不太准确 认为比电流表更准确
...作用。 电感器相当于对直流短路。 特点 并联的电容器串联起来像电阻,串联的电容器并联起来像电阻 并联的电感器和并联的电阻结合在一起串联的电感器和串联的电阻结合在一起