# For the circuit shown below, what is the value of RB & RC required to establish a Q – point of 6 V & 1 mA Given VCC = 12 V Β = 100 VBE = 0.7 V

1.  1.13 KΩ, 6 KΩ

2.  6 MΩ, 1.13 KΩ

3.  1.3 MΩ, 6 KΩ

4.   1.13 KΩ, 6 KΩ

4

1.3 MΩ, 6 KΩ

Explanation :
No Explanation available for this question

# The feedback used in the circuit shown below can be clarified as

1.   Shunt –series feedback

2.   Shunt-shunt feedback

3.  Series-shunt feedback

4.  Series-series feedback

4

Shunt-shunt feedback

Explanation :
No Explanation available for this question

# The purpose of biasing the transistor is

1.  To fix a constant output voltage irrespective of variation of β only

2.  To fix a constant DC collector current irrespective of variation of temperature only

3.  To fix a constant DC collector current irrespective of variation of input signal, temperature of β temperature and leakage current

4.  To fix a constant DC collector current irrespective of variation of β, temperature and leakage current

4

To fix a constant DC collector current irrespective of variation of β, temperature and leakage current

Explanation :
No Explanation available for this question

# The voltage gain verses frequency curve of an Op-Amp is shown in the given figure

1.  200Hz

2.  200M Hz

3.  200 KHz

4.  2 M Hz

4

200 KHz

Explanation :
No Explanation available for this question

# Which of the following represents output wave form for the input shown below

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# A 1 msec pulse can be stretched to 1 sec pulse by using

1.  An astable multivibrator

2.  A mono stable multivibrator

3.  A bistable multivibrator

4.  A Schmitt Trigger circuit

4

A mono stable multivibrator

Explanation :
No Explanation available for this question

# The current gain of BJT is

1.  gm ro

2.  gm/ro

3.  gm rπ

4.  gm rπ

4

gm rπ

Explanation :
No Explanation available for this question

# For the fixed bias circuit shown in below figure, determine the minimum & maximum value of hFE for the variation of quiescent collector emitter voltage which is shown

1.  40 ≤ hFE ≤ 200

2.   40 ≤ hFE ≤ 160

3.  100 ≤ hFE ≤ 200

4.  40 ≤ hFE ≤ 100

4

40 ≤ hFE ≤ 160

Explanation :
No Explanation available for this question

# A CASCODE amplifier is a two stage configuration of

1.  CC – CB

2.  CE – CB

3.  CB – CC

4.  CE – CC

4

CE – CB

Explanation :
No Explanation available for this question

# The Op-Amp circuit shown in the figure is

1.  A high-pass circuit

2.  A low-pass circuit

3.   A band-pass circuit

4.  An all-pass circuit

4

A low-pass circuit

Explanation :
No Explanation available for this question

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