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
举一反三
- 中国大学MOOC: 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
- 中国大学MOOC: 图示电路中,用戴维南定理求图(a)中电压U。图(a)的戴维南等效图如图(b)所示,则图(b)中 Uo= V,Ro= Ω。http://edu-image.nosdn.127.net/63BE3D3BC52F9B4AEC67DDC5AEAAC594.png?imageView&thumbnail=890x0&quality=100 http://edu-image.nosdn.127.net/80387FE5DC15A8D04B752346C5E762A1.png?imageView&thumbnail=890x0&quality=100 (a) (b)
- 中国大学MOOC: 图(a)的戴维南等效图如图(b)所示,则图(b)中Uo= V,Ro= Ω。http://edu-image.nosdn.127.net/50E9EF209369F32D684FAE0A941D9CDC.png?imageView&thumbnail=890x0&quality=100 http://edu-image.nosdn.127.net/E3F6E50E9BBB665D9D085C2689D2F094.png?imageView&thumbnail=890x0&quality=100 (a) (b)
- 图示电路中,由叠加定理可知,当ab两点之间的电压Uab=0V时,电压源电压Us应为 V。http://edu-image.nosdn.127.net/8627C1BCE16B6DEC2616B944186DED7E.jpg?imageView&thumbnail=890x0&quality=100
- 中国大学MOOC: 将电路化为最简形式,其中等效电压源Us=( )V。http://edu-image.nosdn.127.net/D3D448D4267D7BCDF65158A0F0BF234F.jpg?imageView&thumbnail=890x0&quality=100