Skip to content Skip to navigation

Connexions

You are here: Home » Content » AE_EC1405_EVENSEM_2011_MidSemesterQuestions

Navigation

Recently Viewed

This feature requires Javascript to be enabled.
 

AE_EC1405_EVENSEM_2011_MidSemesterQuestions

Module by: Bijay_Kumar Sharma. E-mail the author

Summary: MidSemester Question Paper of Even Semester_2011 in the subject Analog Electronics.

MIDSEMESTER TEST

EC1405_Analog Electronics_IT & CSE Fourth Semester.

Time: 2 hours Total Marks:18 points

Question 1 is compulsory and any two of the remaining three questions.

Question 1.

  • Give the spectrum slot allotted for AM_Medium Wave-AIR local transmission, for AM_Short Wave_Global Transmission, for Doordarshan Transmission for Channel 2 to 6 and for FM Radio transmission by AIR.
  • Describe Amplitude Distortion also known as Harmonic Distortion. Give an example of Amplitude Distortion.
  • Describe Frequency Distortion and an application where Frequency Distortion occurs.
  • Describe the different schemes of Biasing and which schemes are preferred in actual circuits.
  • Draw the Frequency Domain Response and Time Domain response of Emitter Degenerate Amplifier at 100Hz and at 10kHz.
  • How does a HPF(High Pass Filter) behave at very low frequencies where time period of repetition of input square wave is much larger than the Time Constant of HPF.
  • How does a LPF(Low Pass Filter) behave at very high frequencies where time period of repetition of input square wave is much smallerthan the Time Constant of LPF.
  • What is the CRO display under Component Testing mode for resistance R which is high, low, open circuit and short circuit.

Question 2.

Figure 1
Figure 1 (Picture 1.png)
  • Identify the amplifier.
  • If ICQ= 1mA, VCEQ = 5V then write down the incremental parameters of the BJT either for its h-model or for its Hybrid-pi Model.
  • Draw the DC and AC load line on the I-V family of curves of Q BC548 and mark the Q point.
  • Using the load line draw the output curve if the input voltage is

vS = 1VSin(ωt).

Question 3.

If a Low Pass Filter has R = 10k and C = 1µF then calculate its cutoff frequency.

  1. What is the frequency response BODE PLOT of the magnitude of the transfer function H(jω) of LPF ?
  2. What is the Time Domain Response of LPF for:
  1. T of the square wave >> τ (time constant) of LPF;
  2. T of the square wave ≈ τ (time constant) of LPF;
  3. T of the square wave << τ (time constant) of LPF;

(Assume that input square wave is of 10V amplitude and it is offsetted by 5V).

Question 4.

Figure 2
Figure 2 (Picture 2.png)

  • Identify the amplifier.
  • If ICQ= 1mA, VCEQ = 5V then write down the incremental parameters of the BJT either for its h-model or for its Hybrid-pi Model.
  • Draw the DC and AC load line on the I-V family of curves of Q BC548 and mark the Q point.
  • Using the load line draw the output curve if the input voltage is

vS = 5mVSin(ωt).

Content actions

Download module as:

PDF | More downloads ...

Add module to:

My Favorites (?)

'My Favorites' is a special kind of lens which you can use to bookmark modules and collections. 'My Favorites' can only be seen by you, and collections saved in 'My Favorites' can remember the last module you were on. You need an account to use 'My Favorites'.

| A lens I own (?)

Definition of a lens

Lenses

A lens is a custom view of the content in the repository. You can think of it as a fancy kind of list that will let you see content through the eyes of organizations and people you trust.

What is in a lens?

Lens makers point to materials (modules and collections), creating a guide that includes their own comments and descriptive tags about the content.

Who can create a lens?

Any individual member, a community, or a respected organization.

What are tags? tag icon

Tags are descriptors added by lens makers to help label content, attaching a vocabulary that is meaningful in the context of the lens.

| External bookmarks