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UC和CD怎么诊断区分
换路前电路处于稳态,t=0时开关闭和,求
Uc
(0-),IC(0-)和Uc(0+),IC(0...
答:
Uc
(0-)=[3k/(1.5k+3k)]90V=60V Uc(0+)=Uc(0-)=60V Ic(0-)=0 开关闭合后电容通过电阻放电 Uc(∞)=0 时间常数τ=RC=100000×1/1000000=0.1s 电容电压函数 Uc(t)=Uc(∞)+[Uc(0+)- Uc(∞)]exp(-t/τ)=0+[60-0]Vexp(-t/0.1)=60Vexp(-10t)Ic(t)=
Cduc
(t)/dt=-...
怎么
把
UC
设置为默认浏览器
答:
/iknow-pic.cdn.bcebos.com/b17eca8065380
cd
711bc7327a444ad345882815e?x-bce-process=image/quality,q_85"target="_blank"title="点击查看大图">/iknow-pic.cdn.bcebos.com/b17eca8065380cd711bc7327a444ad345882815e"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos....
怎么
把
UC
浏览器设置成默认浏览器
答:
/iknow-pic.cdn.bcebos.com/b17eca8065380
cd
711bc7327a444ad345882815e?x-bce-process=image/quality,q_85"target="_blank"title="点击查看大图">/iknow-pic.cdn.bcebos.com/b17eca8065380cd711bc7327a444ad345882815e"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos....
...电容原先未储能 求开关S闭合后电容两端电压
Uc
答:
等效电容C=1C2/(C1+C2)=20/3uF E=Uc+U2(U2为电阻R2上的电压)又故Ic=(E-
UC
)/R2 Ic=
CdUc
/dt 故(E-Uc)/R2=CdUc/dt dUc/(E-Uc)=dt/CR2 两边积分得 -ln(E-Uc)=t/CR2+A E-Uc=(lnA)*e^(-t/CR2)又t=0时Uc=0 故lnA=E 既Uc=E[1-e^(-t/CR2)]将E,R2,C代入即可 可...
怎么
设置
uc
浏览器为默认的浏览器
答:
/iknow-pic.cdn.bcebos.com/b17eca8065380
cd
711bc7327a444ad345882815e?x-bce-process=image/quality,q_85"target="_blank"title="点击查看大图">/iknow-pic.cdn.bcebos.com/b17eca8065380cd711bc7327a444ad345882815e"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos....
uc
浏览器阅读模式
怎么
打开
答:
1.进入到浏览器默认的页面,在底部有个更多的模块,进行点击。/iknow-pic.cdn.bcebos.com/2fdda3cc7
cd
98d1033827b6c273fb80e7bec901c?x-bce-process=image/quality,q_85"target="_blank"title="点击查看大图">/iknow-pic.cdn.bcebos.com/2fdda3cc7cd98d1033827b6c273fb80e7bec901c"target=...
UC
浏览器中英文
怎样
换成中文?
答:
1、打开电脑上网,浏览器变成这样了 /iknow-pic.cdn.bcebos.com/18d8bc3eb13533fae1
cd
985da6d3fd1f41345b4d"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/18d8bc3eb13533fae1cd985da6d3fd1f41345b4d?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_...
怎么
在手机
UC
浏览器上设置允许本站点弹出窗口
答:
/iknow-pic.cdn.bcebos.com/34fae6
cd
7b899e5198184fcc4ca7d933c9950d57"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/34fae6cd7b899e5198184fcc4ca7d933c9950d57?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%...
为什么i=-
cduc
/dt
答:
i=
cdUc
/dt是电容充电时候的式子。i=-cdUc/dt是放电时候的式子。就也是说,第一个式子电流方向是流向电容的。第二个式子的电流方向则是电容的正极板流出去的。
uc
浏览器
怎样
设置默认浏览器
答:
/iknow-pic.cdn.bcebos.com/b17eca8065380
cd
711bc7327a444ad345882815e?x-bce-process=image/quality,q_85"target="_blank"title="点击查看大图">/iknow-pic.cdn.bcebos.com/b17eca8065380cd711bc7327a444ad345882815e"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos....
棣栭〉
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涓嬩竴椤
灏鹃〉
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