題組內容

二、如圖二所示電路,其中Q1與Q2相同,且VBE = 0.7 V,β = 150。C1 = C2 = ∞ F, R1 = 1.2 MΩ,R2 = 3 kΩ,R3 = 1 kΩ,VCC = + 5 V

⑴求Q1、Q2 之DC集極電流 (collector current)IC1及IC2 =?