【简答题】电路如图所示,已知 Rf = 10kΩ, R1 = R2 = 1kΩ,R = 2kΩ;信号源内阻Ra = 1.1kΩ,Rb = 0.9kΩ。 这个电路对于信号源的差模电压放大倍数是( )。 (提示:在视频中讲过相关的公式。)
【单选题】“ In your rocking-chair, by your window, shall you dream such happiness as you may never feel.” This is the last sentence of _______ .
【简答题】信息匹配A. Happiness lies in persistent pursuit. B. Happiness is in your own hand. C. Self-knowledge is positively related to happiness. D. Happiness is based on comparison. E. There does not exist a guid...
【简答题】如图17-20所示电路中的输出电压u o 及平衡电阻R 4 的大小,并指出放大电路中的反馈元件及类型。已知:R 1 =5kΩ,R F =10kΩ,R 2 =3kΩ,R 3 =6kΩ,u i =0.2V。
【单选题】在如图所示电路中,电阻R1 =10KΩ,RF =20KΩ,集成运放的最大输出电压为±12V,ui =0.3V,则输出电压uo的大小为( )。【图片】