-Refer to a)in the figure above. If VCC = 15 V, the approximate output voltage is
A)- 13 V.
B)- 1 V.
C)13 V.
D)1 V.

Question

-Refer to a)in the figure above. If VCC = 15 V, the approximate output voltage is
A)- 13 V. 
B)- 1 V. 
C)13 V. 
D)1 V.

Quizplus · Accepted Answer

The output voltage in a common-emitter amplifier configuration (which is implied by the reference to VCC and the context of the question) is typically VCC minus the voltage drop across the collector resistor. Assuming the transistor is in active mode and not saturated, the voltage drop across the collector-emitter junction is usually small (around 0.2 to 0.3 V for silicon transistors in active mode), so the output voltage would be close to VCC, making 13 V the approximate output voltage.

-Refer to A)in the Figure Above