-Refer to the figure above. This circuit is brought in for repair. The measured output voltage was 25 V under all load conditions. A possible cause of this symptom might be that
A)R3 has opened.
B)R2 has opened.
C)Q1 base- emitter has opened.
D)Vin has decreased.

Question

-Refer to the figure above. This circuit is brought in for repair. The measured output voltage was 25 V under all load conditions. A possible cause of this symptom might be that
A)R3 has opened. 
B)R2 has opened. 
C)Q1 base- emitter has opened. 
D)Vin has decreased.

Quizplus · Accepted Answer

The Answer is B

-Refer to the Figure Above