Electronics and Communication Engineering - Analog Electronics

16. 

In the graphical analysis of an amplifier circuit, the slope of dc load line depends on

A. load resistance only
B. collector supply voltage only
C. both load resistance and collector supply voltage
D. none of the above

Answer: Option A

Explanation:

Slope is .


17. 

In figure we need an ac ground. The proper value of C is

A. 1000 μF
B. 100 μF
C. 10 μF
D. 1 μF

Answer: Option A

Explanation:

XC should be less than 10% of 10 kΩ. There XC < 1000 Ω.


18. 

For the circuit in figure the output wave shape is

A.
B.
C.
D.

Answer: Option D

Explanation:

It is a biased limiter circuit. During positive half clipping is at 5 V due to battery.


19. 

In figure V0 =

A. 11 Vi
B. 10 Vi
C. Vi
D. 0

Answer: Option C

Explanation:

.


20. 

In figure, ID = 4 mA. Then VS =

A. 20 V
B. 16 V
C. 6 V
D. 0.6 V

Answer: Option C

Explanation:

VS = 4 x 10-3 x 1.5 x 10-3 = 6 V.