In the saturation region, the base-emitter junction _____（）
A. and the base-collector junctions are both forward-biased
B. and the base-collector junctions are both reverse-biased
C. is forward-biased while the base-collector junction is reversed-biased
D. is reversed-biased while the base-collector junction is forward-biased
查看答案
When a BJT is biased in the cutoff region the collector-to-emitter voltage is typically equal to ____（）
A. the emitter voltage
B. 0.03V
C. the collector current times the collector resistor
D. the collector supply voltage
β is the ratio of _____（）
A. collector current to emitter current
B. base current to collector current
C. collector current to base current
D. emitter current to collector current
Why is the arrow on the BJT schematic symbol important（）
A. It identifies the emitter terminal and the type of BJT
B. It identifies the collector terminal and the type of BJT
C. It identifies the base terminal and the type of BJT
D. None of the above
In a small-signal transistor, the typical range of the parameter α is _____（）
A. greater than 1
B. between 0 and 1
C. almost equal to 1 but always less than 1 （0.9 to 1.0）
D. almost equal to 1 but always greater than 1 （1.0 to 1.1）
微信支付 
支付宝支付