Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Electrical & Electronics Expert

problem1) Answer all the problems:

a) Describe why positive feedback and not negative feedback is essential to produce oscillators.

b) What is feedback in amplifiers. prepare down the difference between current and voltage feedback?

c) Describe why BIT’s are called bipolar devices while FET are called unipolar devices and how divine current is controlled in JFET.

d) What do you mean by reverse saturation current of a diode?

e) What is the importance of stability factor in transistor operation.

problem2) describe and prove reciprocity theorem.

problem3) Draw the circuit diagram of Huntley oscillator and briefly describe how the oscillations are maintained in this oscillator.

problem4) Draw a block diagram of feedback amplifiers in the following configuration.

i) Voltage series feedback.

ii) Voltage shunt feedback. Determine an expression for voltage gain of an amplifier with negative feedback in configuration.

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M94173

Have any Question? 


Related Questions in Electrical & Electronics

Given the sinusoidal expression for the voltage and current

Given the sinusoidal expression for the voltage and current of a load, write a program to determine the average power and power factor.

A 6 pole dc generator runs at 1200 rpm on no load and has a

A 6 pole d.c. generator runs at 1200 rpm on no load and has a generated emf of 250 v. If armature diameter is 350 mm and the radial airgap between field poles and armature is 3mm. The axial length of field poles is 260 m ...

At a temperature of c the resistances of a type of

At a temperature of C, the resistances of a type of thermistor are normally distributed with a mean of 10,000 ohms and a standard deviation of 4,000 ohms. The thermistors are to be sorted, with those having resistances b ...

For the network of given figurea write the equations

For the network of given figure: a. Write the equations necessary to solve for the branch currents. b. By substitution of Kirchhoff's current law, reduce the set to three equations. c. Rewrite the equations in a format t ...

The pi speed regulator in problem 4 is changed to ip

The PI speed regulator in problem 4 is changed to IP regulator. All operating conditions of the speed control system are the same as those of problem 4. The speed regulator is implemented in the analog domain. The dampin ...

Assume the stepper motor driver described in exercise 814

Assume the stepper motor driver described in Exercise 8.14 is connected to a Gumnut core through a 6-bit output register at port address 8, with bits 0 to 5 of the register controlling signals in1, in2, en_a, in3, in4 an ...

An optical bre transmission system consists of a circular

An optical ?bre transmission system consists of a circular LED source, a 2-metre length of optical ?bre and a circular PIN diode detector. Both the source and detector are positioned 100 µm from the ends of the ?bre. Det ...

A what sources of error can arise if the block length and

(a) What sources of error can arise if the block length and the sampling frequency are not in an integer relationship to each other? (b) Cut out from a longer speech signal a short segment, for example, of 0.07s in lengt ...

Find the voltage vabnbspwith polarity across the ideal

Find the voltage V ab  (with polarity) across the ideal current source of given figure.

A single-phase 10-kva 480120-v transformer is to be used as

A single-phase 10-kVA 480/120-V transformer is to be used as an autotransformer tying a 600-V distribution line to a 480-V load. When it is tested as a conventional transformer, the following values are measured on the p ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate