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Arpita
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Quote Arpita Replybullet Topic: Analog circuit sample questions
    Posted: 09Jan2007 at 5:35pm


Que. 1 A cascade amplifier stage is equalent to
A
a comman emittor stage followed by a common  base stage
B
a comman base stage followed by a common emittor stage
C
a common base stage followed by an emittor follower
D
an emittor follower stage followed by a common base stage

Que. 2 In order to make Q point independent and varitions B in a transistor amplifier,it 
is   necessary to make
A
R (b)<<  B R(c)
B
(D)R < or =  B R(c)
C
(D)R(b) < or =  B R
D
R(b) < or =  B R(c)

Que. 3 Input resistance of a common base transistor ckt is of the order of
A
0The output resistance of a common base transistor ckt is of 
the order of
B
50-100 ohm
C
100-150 ohm
D
150-200 ohm

Que. 4 The emitter coupled pair of BJTs gives a linear transfer relation between 
the   differential output voltage and input voltage only when the magnitude 
of V(id) is less   alpha times the thermal voltage, where alpha is
A
4
B
3
C
2
D
1

Que. 5 Maximum efficiency of half wave rectifier is
A
33.33%
B
40.6%
C
50%
D
68%

Que. 6 If the input ac is 10Vrms the maximum voltage that will appear across 
the diode of a   half wave rectifier with a capacitor input filter will 
be
A
10v
B
14v
C
20v
D
28v

Que. 7 The three stage cascaded amplifier of identical non-interacting FET common 
source stage   has all over an voltage gain of 1000 and overall bandwidth 
of 25*10^6rad/sec given   g(m) =5mA/v the shunt capacitance of each stage 
is given by
A
20PF
B
10PF
C
3.2PF
D
1.6PF

Que. 8 When a +ve gate voltage is applied to MOSFET it is said to operate in
A
enhancement mode
B
depletion mode
C
conduction mode
D
none of these

Que. 9 the tunned ckt for good stability should have
A
low C
B
low r
C
high Q
D
low L

Que. 10 by varying which one of the following the RR feedback oscillator are usually 
tunned
A
load impedance
B
bras
C
lore
D
none of these

Que. 11 An operational amplifier has a slow rate of 100V/micre sec. for a freq. 
of 10mhz the maximum value of the sine wave output voltage will be
A
100v
B
50/(pi)^v
C
10v
D
5v

Que. 12 the number of flipflop required to build a mod-15 counters is
A
4
B
5
C
6
D
7




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gdeepika_rani
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Quote gdeepika_rani Replybullet Posted: 12Sep2007 at 10:20am
where are the answers ,
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jitendra kumar
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Quote jitendra kumar Replybullet Posted: 13Sep2007 at 1:10am
my gate  scor is 576. i want yo give good response.
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jitendra kumar
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Quote jitendra kumar Replybullet Posted: 13Sep2007 at 1:11am

Dead

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