1物理电容电压计算Inthecircuitshowninthefigure, allthecapacitorsareair-filled. WiththeswitchSopen, the 40.0-µFcapacitorhasaninitialchargeof 5.00 µCwhiletheotherthreecapacitorsareuncharged. Theswitchisthenclosedandleftclosedforalongtime. Calculatetheinitialandfinalvaluesofthetotalelectricalenergystoredinthese...
百度试题 题目 In the circuit shown in the following Figure .When the resistance R2 increases, the current I will( ). A.increaseB.decreaseC.remain the sameD.not sure 相关知识点: 试题来源: 解析 A 反馈 收藏
百度试题 题目In the circuit shown in the following Figure .I=( ). A.6AB.4AC.2AD.-2A相关知识点: 试题来源: 解析反馈 收藏
计算过程：电容两端电压=Q/C=5.00 µC/40µF=0.125（伏特）初始时候的静电能=QU/2=5.00 µC×0.125V/2=3.125×10^-7（库伦·伏特）开关闭合很久后，电路等效如下图：总电路等效为一个60µF的电容，原先在C1上的5.00 µC的电荷会分散到各个电容上（C1、C2...
【题目】In the circuit shown in Figure 4, a battery supplies a con-stant voltage of 40 V, the inductance is 2 H, the resistance is10 Ω, and I(0)= 0.Find /(t). 答案 【解析】I(t)=4-4e^(-5t)相关推荐 1【题目】In the circuit shown in Figure 4, a battery supplies a con-st...
The circuit shown in the figure is a图中所示的电路是一个【图片】A.one-shot. 单稳。B.multivibrator. 多谐振
题目出得不是很好。 非常相 讲师 8 电路的暂态与稳态!第一题说的是,电容没有电,开关闭合后的过程:总电流经R1后,分两路,一路静R2,一路经C(充电电流),所以流经R1的电流比流经R2的电流大!第二题说的是,开关并和很久了,电路稳定了,这是电容充满,没有充电电流,所以R1 、R2的电流相等! Aavivachc 小...
In the circuit shown in the figure, the switch has been closed for a long time. At time t=0,the switch is opened. Find the current through the inductor as a function of time fort>0. Figure i(t)= Please provide me with the the...
(ii) If r2 is short circuited and the point A is connected to point B, find the current through E1,E2,E3 and the resistor R. View Solution In the circuit shown in figure ,(ε)1=3V,(ε)2=2V,(ε)3=1Vandr1=r2=r3=1(Ω).Find the potential difference between the points A and...
点击查看答案&解析 不定项选择 在dq坐标系中,异步电动机ω-is-ψr为状态变量的状态方程,将角频率ω1=0代入方程,并用αβ坐标系中相应参数替换,就可以得到αβ坐标系ω-is-ψr的状态方程。 A.正确 B.错误 点击查看答案