电路如图所示,如果电容Ce开路,电路的电压放大倍数将( )。http://edu-image.nosdn.127.net/7F2280942B0F6A8314D455B87B0D6EAC.jpg?imageView&thumbnail=890x0&quality=100
举一反三
- 已知某放大电路的幅频特性如下图所示,其电压放大倍数的表达式为()。http://edu-image.nosdn.127.net/A922804B9356BB17CB7F7121CFCC0E3F.png?imageView&thumbnail=890x0&quality=100
- 逻辑电路如图(a) 所示,若各输入信号波形如图(b) 所示,则Q1、Q2的波形如图(c) 所示,对吗?假设两个触发器的初始状态均为0。http://edu-image.nosdn.127.net/BEBCCC056ABBD6F251A01C1C632863DF.png?imageView&thumbnail=890x0&quality=100 http://edu-image.nosdn.127.net/5592FA167A8A7D8C93AD633F0E01D161.png?imageView&thumbnail=890x0&quality=100http://edu-image.nosdn.127.net/C853EF51EFF13D688C5BEDB9CD8C030C.png?imageView&thumbnail=890x0&quality=100
- 电路如图15(a)所示,当电位器调到最下端时, 输出电压波形uo及电容波形uc如图(b)所示。http://edu-image.nosdn.127.net/5E55822DC98FB4F4068B1C8C3D688F7C.png?imageView&thumbnail=890x0&quality=100
- 中国大学MOOC: 如图8-48所示电路,在开关S断开时,电容C两端的电压为( ) http://edu-image.nosdn.127.net/D4540E1F6B0DA464EFC83E7E53C4B3A6.png?imageView&thumbnail=890x0&quality=100
- 图示电路中,(a)图的电压源Us=20V时,U=8V。若将Us去掉并用短路线代替,如图(b)所示,试求图(b)电路的U= V。http://edu-image.nosdn.127.net/426E2798D8AD1AD38E20BBB925BA7F9D.png?imageView&thumbnail=890x0&quality=100 http://edu-image.nosdn.127.net/CC5774C33E28389284273447A6B8CA49.png?imageView&thumbnail=890x0&quality=100