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[单选题]
放大电路如题图所示,已知β = 50,UBE = 0.7V,UCES = 0,RC = 2kW,RL = 20kW,UCC = 12V。若要求放大电路有最大的输出动态范围,则RB应调到()。
放大电路如题图所示,已知β = 50,UBE = 0.7V,UCES = 0,RC = 2kW,RL = 20kW,UCC = 12V。若要求放大电路有最大的输出动态范围,则RB应调到()。![放大电路如题图所示,已知β = 50,UBE = 0.7V,UCES = 0,RC = 2kW,RL](https://img2.soutiyun.com/shangxueba/ask/17019001-17022000/17019163/e9e606d-chaoxing2016-116093.png)
A.312KW
B.168KW
C.188KW
D.212KW
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