单选题
某一双极型晶体管的P
CM
=100nW,I
CM
=20mA,U
(BR)CEO
=15V,试问在下列几种情况下,哪种工作正常?
A.U
CE
=3V,I
c
=10mA B.U
CE
=2V,I
CE
=40mA
C.U
CE
=6V,I
c
=20mA
A
B
C
【正确答案】
A
【答案解析】
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