# Analog Circuits

Analog Circuits
Question:-
Option (A)
an a stable multivibrator
Option (B)
a monostable multivibrator
Option (C)
a bistable multivibrator
Option (D)
a Schmitt trigger circuit
Correct Option:
B
Question Solution:
The output pulse width of the monostable multivibrator can be viewed as a stretched version of the narrow input pulse, hence the name pulse stretcher.

Question:-
Option (A)
12 V
Option (B)
17 V
Option (C)
24 V
Option (D)
29 V
Correct Option:
A
Question:-
Option (A)
Cm should be as small as possible
Option (B)
r0 and Cm should be as large as possible
Option (C)
Cp and Cm should be as large as possible
Option (D)
r0, Cp and Cm should be as large as possible
Correct Option:
A
Question Solution:
fb = (1/hfe).{gm / (2p(Cp + Cm))}
For fb to be higher, Cm should be as small as possible.
Question:-
Option (A)
40 W
Option (B)
50 W
Option (C)
60 W
Option (D)
70 W
Correct Option:
B
Question Solution:
One can obtain a push-pull output of five time the specified power dissipation of a single transistor
Question:-
Option (A)
-{(1/RL) + (1/RC)}
Option (B)
-{1 / (RL + RC)}
Option (C)
-(1/RL)
Option (D)
-(1/RC)
Correct Option:
A
Question Solution:
RL = RL || RC
Slope of AC load line
= (-1 / R’L) = - {(1/RL) + (1/RC)}
Question:-
Option (A)
very low frequency oscillation
Option (B)
radio - frequency oscillation
Option (C)
microwave oscillation
Option (D)
audio - frequency oscillation
Correct Option:
B
Question Solution: