IES EC Government Jobs Exams Logical Reasoning

Q. What is the phase shift between the input and output voltage in a common-base small signal amplifier (assuming ideal coupling and bypass capacitors)?
a. 180°
b. -180°
c. 0°
d. None of the above

Read Solution (Total 1)

c.zero degree
10 years agoHelpfull: Yes(1) No(0)

IES EC Other Question

Q. Which one of the following is a disadvantage of proportional controller?

a. It destabilizes the system
b. It produces offset
c. It makes response faster
d. It has very simple implementation Q. Consider the following parameters of a hybrid-it equivalent circuit of BJT:
1. Transconductance (gm)
2. hfe
3. hie
Which of the above parameters vary with temperature in similar manner (all of them decrease or all of them increase)?

Select the correct answer using the codes given below:

a. Only 1 and 2
b. Only 2 and 3
c. Only 1 and 3
d. 1, 2 and 3