# In a multi stage R-C coupled amplifier, the coupling capacitor

1.  Limited the low frequency response

2.  Limits the high frequency response

3.  Does not effect the frequency response

4.  Block the d.c component without affecting the frequency response

4

Limited the low frequency response

Explanation :
No Explanation available for this question

# Bandwidth of an n stage amplifier, with each stage having a bandwidth of B, is given by

1.  B/n

2.  B/√n

3.  B√(21/n-1)

4.  B/√(21/n-1)

4

B√(21/n-1)

Explanation :
No Explanation available for this question

# In a transistor push pull amplifier, there is

1.  No d.c present in the output

2.  No distortion in the output

3.  No even harmonics in the output

4.  No odd harmonics in the output

4

No even harmonics in the output

Explanation :
No Explanation available for this question

# For the 2N 338 transistor, the manufacturer specifier Pmax=100mW at 250C free air temperature and maximum junction temperature, Tjmax=1250C.Its thermal resistance is

1.  100C/W

2.  1000C/W

3.  10000C/W

4.  10,0000C/W

4

10000C/W

Explanation :
No Explanation available for this question

# A common emitter transistor amplifier has a cpollector current of 1.0mA wghen its base current is 25μA at the room temperature. It’s input resistance is approximately equal to

1.  10 ohms

2.  100 ohms

3.  1000ohms

4.  10,000 ohms

4

1000ohms

Explanation :
No Explanation available for this question

# If breakdown voltage of a transistor with its base open is BVCEO and that with emitter open is BVCBO then

1.  BVCEO= BVCBO

2.  BVCEO>BVCBO

3.  BVCEO< BVCBO

4.  BVCEO is not related to BVCBO

4

BVCEO< BVCBO

Explanation :
No Explanation available for this question

# A BJT is said to be operating in the saturation region if

1.  Both the junctions are reverse biased

2.  Base emitter junction is reverse biased and base collector junction is forward biased

3.  Base emitter junction is forward biased and base collector junction is reverse biased

4.   Both the junctions are forward biased

4

Both the junctions are forward biased

Explanation :
No Explanation available for this question

# Ebers –Moll model is aplicable to

1.  Bipolar junction transistor

2.  NMOS transistor

3.  Unpolar junction transistor

4.  Junction field effect transistors

4

Bipolar junction transistor

Explanation :
No Explanation available for this question

# To obtain very high input and output impedance in a feedback amplifier, the topology, mostly used is

1.  Voltage series

2.  Current series

3.  Voltage shunt

4.  Current shunt

4

Current series

Explanation :
No Explanation available for this question

# A change in the value of the emitter resistance R0, in a difference amplifier affects

2.  Common mode gain, Ae

3.  Both a and b

4.  None of these

4