MCQ on Analog Electronics with Answers - 10

Multiple Choice Questions with Answers on Analog Electronics Circuits - 10

1. Negative feedback in an amplifier results in

a.       more gain, more bandwidth

b.      more gain, less bandwidth

c.       less gain, less bandwidth

d.      less gain, more bandwidth

Answer: d

 

2. In a transconductance amplifier

a.       output voltage depends on input current

b.      output current depends on input voltage

c.       output voltage depends on input voltage

d.      output current depends on input current

Answer: b

 

3. In a transresistance amplifier

a.       output voltage depends on input current

b.      output current depends on input voltage

c.       output voltage depends on input voltage

d.      output current depends on input current

Answer: a

 

4. The input and output impedance in an ideal current amplifier are respectively

a.       0, infinite

b.      infinite, 0

c.       infinite, infinite

d.      0, 0

Answer: a

 

5. On the introduction of voltage series inverse feedback in an amplifier, the output resistance R_o and the input resistance R_i respectively

a.       increase, increase

b.      decrease, increase

c.       increase, decrease

d.      decrease, decrease

Answer: b

 

6. Emitter follower circuit is characterized by

a.       low output impedance and little distortion

b.      low output impedance and significant distortion

c.       significant output impedance and significant distortion

d.      none of these

Answer: a

 

7. In a single tuned capacitance coupled amplifier, the frequency response depends on

a.       only the input circuit

b.      only the output circuit

c.       both input and output circuits

d.      neither input circuit nor the output circuit

Answer: b

 

8. The bandwidth of a double tuned transformer coupled amplifier can be adjusted by varying

a.       value of the inductance

b.      coefficient of coupling

c.       value of emitter circuit biasing resistor

d.      none of these

Answer: b

 

9. A double tuned circuit amplifier provides

a.       high gain for passband frequencies

b.      more flat response for all frequencies

c.       more flat response for all passband frequencies

d.      less harmonic distortion

Answer: c

 

10. The condition under which a transistor amplifier is fundamentally stable is

a.       V_CE < V_CC/2

b.      V_CE = V_CC/2

c.       V_CE > V_CC/2

d.      V_CE = 3V_CC/4

Answer: a

 

Hope this post on "MCQ on Analog Electronics with Answers-10" will help Electronics Engineering and Electrical Engineering students in preparation of technical interviews, GATE, IES etc.