单项选择题
A.in both directions B.in one direction only C.in both directions but in only one direction at a time D.depends on the circuit it is used in
Which of the following is not a commonly used semicondu...
单项选择题Which of the following is not a commonly used semiconductor material’？（）
A.carbon B.lead C.silicon D.germanium
试分析图电路的输出电压可调节的范围。
问答题
试推导图电路中输出电流IO的表达式。A为理想集成运算放大器，且可以正常工作；三端集成稳压器CW7824的3、2...
试推导图电路中输出电流IO的表达式。A为理想集成运算放大器，且可以正常工作；三端集成稳压器CW7824的3、2端间的电压用UREF表示。
