中国大学MOOC: 如图示电路,计算电容上的电压为( )V。http://edu-image.nosdn.127.net/18A7351E90CCFDDAC7168B9655330661.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: 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
- 中国大学MOOC: http://edu-image.nosdn.127.net/F8D1C10653F1025CBF0BFC99472401F5.jpg?imageView&thumbnail=890x0&quality=100图示电路中i为
- 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: 若第9题中当电路中总电压http://edu-image.nosdn.127.net/45D53DF610EBF196EBE5238589C91ABF.png?imageView&thumbnail=890x0&quality=100,http://edu-image.nosdn.127.net/8232D55E2C1346F746EFBB0780167F51.png?imageView&thumbnail=890x0&quality=100,http://edu-image.nosdn.127.net/A2CC3366BF7376F66D8EFFEB40B97149.png?imageView&thumbnail=890x0&quality=100,以下叙述正确的是