1.

You find that there is an input signal on the base of Q 1 and Q 2 . However, there is no output signal. You then measure the dc voltages on Q 2 and find them to be all 0 V. The possible trouble might be

A. C 3 is shorted.
B. C 1 is open.
C. R L is shorted.
D. V CC is 0 V.
Answer» E.


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