【简答题】在图8-16所示稳压电路中,已知稳压管的稳定电压U Z 为6V,最小稳定电流I Z,max 为5mA,最大稳定电流I Z,max 为40mA;输入电压U I 为15V,波动范围为±10%;负载R L 的变化范围为:1kΩ~2kΩ,r Z =15Ω。 (1) 求R的取值范围; (2) 取R=5000Ω,估算电路稳压系数S和输出电阻R o
【简答题】According to Paragraph 5,George Osborne may_______. A.allow greater government debt for housing B.stop local authorities from building homes C.prepare to reduce housing stock debt D.release a lifted G...