MCQ on Analog Electronics with Answers - 13

 

Multiple Choice Questions with Answers on Analog Electronics Circuits - 13

1. Bootstrap voltage sweep generator uses

a.                  negative feedback

b.                 positive feedback

c.                  both negative & positive feedback

d.                 no feedback

Answer: b

 

2. Miller integrator voltage sweep generator uses

a.                  negative feedback

b.                 positive feedback

c.                  both negative & positive feedback

d.                 no feedback

Answer: a

 

3. Darlington emitter follower has

a.                  high input resistance and unity voltage gain

b.                 low input resistance and unity voltage gain

c.                  low input resistance and high voltage gain

d.                 high input resistance and voltage gain less than unity but close to unity

Answer: d

 

4. The current gain of CC amplifier having h_fe = 60 is approximately

a.                  1/60

b.                 120

c.                  61

d.                 60

Answer: c

 

5. Dynamic impedance of a Zener diode

a.                  increases with the increase of current through it

b.                 is independent of current through it

c.                  decreases with the increase of current through it

d.                 first increases, reduces reaches a maximum and then decreases with increase of current through it

Answer: b

 

6. Tuned amplifiers are generally not used in

a.                  Radio receivers

b.                 Radar receivers

c.                  TV receivers

d.                 Public address system

Answer: d

 

7. To increase the bandwidth, distributed amplifier uses

a.                  tuned circuits

b.                 resonant cavities

c.                  transmission lines

d.                 cascode amplifier

Answer: c

 

8. RC coupling are usually preferred to transformer coupling in wideband amplifiers because of its

a.                  more flat frequency response in low frequency range

b.                 more flat frequency response in high frequency range

c.                  more flat frequency response over a wide frequency range

d.                 less phase distortion

Answer: d

 

9. For a good transient response, the transfer function of the amplifier should not have

a.                  zeros in the right half of s-plane

b.                 zeros in the left half of s-plane

c.                  poles in the right half of s-plane

d.                 poles in the left half of s-plane

Answer: c

 

10. In lag compensation method for amplifiers, the zero introduced at f_s is

a.                  lower than pole introduction at f_p

b.                 higher than pole introduction at f_p

c.                  equal to pole introduction at f_p

d.                 double of the pole introduced at f_p

Answer: d

Hope this post on "MCQ on Analog Electronics with Answers-13" will help Electronics Engineering and Electrical Engineering students in preparation of technical interviews, GATE, IES etc.