ELECTRON AND HOLE

Hi Friends,

There is always a confusion for the beginners about the difference between an electron and a hole. Let us find out the differences so that the going gets easy in the electronic stream.

1) An electron is a free charge carrier which contributes to current in the conduction band.
    A hole is a vacancy created due to the absence of an electron.

2) Electron current is movement of the electrons in the conduction band but the direction of current will be
    in  the direction of  opposite to that of an electron movement.
    Hole current is a bit confusing but  read it carefully, we already know that a hole is an absence of electron
    so there is no charge but how will it still contribute to current? Hole current is also contribution of the
    electrons. Electrons break the bond in the conduction band and replaces the vacancy available. So that
    now vacancy is created in other place. This seems like hole is moving but actually electron is moving in 
    the  valance band. Thus current due to holes is always in  the direction of motion of hole i.e., direction
    opposite to movement of electrons.

3) Electron always have greater mobility than hole because an electron in conduction band is free charge
    carrier all the energy given is taken for mobility but a for a hole movement an electron in valence band
    must break a bond and then move so some energy is lost. That is why electron has higher mobility than
    hole.

Thanks all.(Any doubts?)

EDC Questions

1.State the principle of operation of SCR?

A silicon controlled rectifier is a semi conductor device that acts as a true electronic switch. It can change alternating current in to direct current and at the same time it can control the amount of power fed to the load. Thus SCR combines the features of a rectifier and a transistor.

2.Distinguish pinch off and cut off in FET?

Pinch off voltage – It is the minimum drain-source voltage at which the drain current essentially becomes constant. Cut-off voltage – It is the gate source voltage where the channel completely cut off and the drain current becomes zero.

3.Distinguish CB, CE, CC configurations in Transistors?

Common base configuration - If the base terminal is connected common to the input and output , it is called common base. The input is fed between the emitter and base and the out put between the collector and base. CE configuration – If the emitter is common to both input and output , it is called CE configuration. Here input is applied between base and emitter and output is taken from collector and emitter. CC configuration – If the collector is common to both input and output , it is called CC configuration. Here input is applied between base and collect or and output is taken from emitter and collector.

4. Discuss the applications of SCR?

In many applications SCR is used as a power control device. The common

applications includes

1. Relay control

2. Regulated power supplies

3. Static switches

4. Motor control

5. Inverters

6. Battery chargers

7. Heater control


5. A silicon diode measures a low value of resistance with the meter leads in both positions. The trouble, if any, is
A. the diode is open.
B.the diode is shorted to ground.
C.the diode is internally shorted.
D.the diode is working correctly.


6. Single-element semiconductors are characterized by atoms with ____ valence electrons.
A.3
B.4
C.5
D.2
E.none of the above


7. Under normal conditions a diode conducts current when it is
A.reverse-biased.
B.forward-biased.
C.avalanched.
D.saturated.


8. A diode conducts when it is forward-biased, and the anode is connected to the ________ through a limiting resistor.
A.positive supply
B.negative supply
C.Cathode
D.anode


9. As the forward current through a silicon diode increases, the internal resistance
A.increases.
B.decreases.
C.remains the same.

KALOJI NARAYANA RAO

KALOJI NARAYANA RAO

Kaloji Narayana Rao (9 September 1914 – 13 November 2002) more popularly known as Kaloji or Kalanna was an Indian poet, freedom fighter, Anti-fascist and political activist of Telangana. He was awarded the Padma Vibhushan in 1992. The Telangana government honored kaloji birthday as Telangana Language DayHe is known for his contributions in the social and literary. He won Padma Vibhushan.

During his student days and later, was heavily influenced by the movements of the time as the Arya Samaj movement, especially the civil rights of it, the Library Movement and the Movement of Andhra Maha Sabha. The care and brotherly kindness of his elder brother Rameshwar Rao Kaloji, a prominent Urdu poet, has also played a vital role in shaping the personality of Kaloji. He participated in the activities of Andhra Mahasabha since its inception in 1934. He was also associated with the Arya Samaj. He actively participated in the liberation movement of the former state of Hyderabad and was remanded in custody under the Nizam. He has also participated in various social, political and literary of A.P.
Their active participation of the masses and their problems and their relentless struggle for emancipation, of course, have won in the same way people love and the wrath of the powers. He is one of those select fighters for freedom in our country who were imprisoned by the feudal lords and foreign rulers before achieving independence for India.

Published writings

• Anakathalu -1941
• Naa Bharatadesha Yatra -1941 (Translation of Brail Ford's "Rebel India")
• Kaloji Kathalu -1943
• Parthiva vyayam -1946
• Naa Godava 1st edition, first print -12/1/1953 ( published in 1953 January 12 at Alampuram by Sri sri at a meeting conducted by Telangana Rracheitala Sangam and Andhra Saraswatha Parishat)
• Naa Godava 1st edition,second print -12/1953
• Tudi Vijayam Manadi Nijam -1962
• Naa Godava Parabhava Vasantham -23/03/1966
• Naa Godava Parabhava Greeshmam -21/05/1966
• Naa Godava Parabhava Varsham -19/07/1966
• Naa Godava Parabhava sharattu -15/10/1966
• Naa Godava Parabhava Hemantham -13/12/1966
• Naa Godava Parabhava shishiram -02/1967
• Naa Godava Parabhava 1st edition, third print -4/1967
• Jeevana Geetha -1968 (Translation of Khalil Zibran's "The prophet")
• Telangana Udyama Kavithalu -1969/70
• Naa Godava (Yuva Bharathi) -1974
• Naa Godava -1975/77
• Idi Naa Godava -1995 (Kaloji's autobiographyraphy)
• Bapu! Bapu!! Bapu!!! -1995
• Kaloji Kathalu -2000

Thanks All

---

Telangana state symbols

Hi all,

The Telangana government has announced the following four icons for the new State:

• The State Bird - Palapitta (Indian Roller or Blue Jay).
• The State Animal - Jinka (Deer).
• The State Tree - Jammi Chettu (Prosopis Cineraria).
• The State Flower - Tangedu (Tanner’s Cassia).

These icons reflect the culture and tradition of Telangana state and three of them - Tangedu flowers, Blue Jay and Jammi Chettu - are associated with the popular festivals of Batukamma and Dasara. While Tangedu flowers are used in stacking of Batukammas, spotting the Blue Jay on Dasara is considered a good omen and people worship Jammi Chettu on that day.

 

Palapitta

---

Lord Rama spotted the Palapitta before invading Lanka and vanquished Ravana. Palapitta has been chosen to put Telangana on the path of victory

 

Jinka

---

Deer is deeply associated with Indian history and a reference to this graceful animal was there in the great epic Ramayana. It can survive in the smallest forests also. It reflects the mindset of the people of Telangana as it is very sensitive and innocent.

 

Jammi Chettu

---

Pandavas had vanquished a large army of Kauravas only after performing worshipping the Jammi Chettu. They had hidden their weapons on a Jammi Chettu when they had been forced into exile in the forests. Now, Telangana requires the blessings of the Jammi Chettu.

Tangedu Flower

---

Tangedu flower which is used during the Batukamma festival by women folk is the most appropriate choice as the state flower.

Thanks all

Few questions on telangana

Hi all,

1. When was Telangana formed?
a) 1 January 2002
b) 2 June 2014
c) 1 August 1960
d) 31 October 1953
2. Who took oath as first Governor of Telangana?
a) E. S. L. Narasimhan
b) Najeeb Jung
c) Kamla Beniwal
d) Sheila Dikshit
3. Who took oath as first Chief Minister of Telangana?
a) N. Chandrababu Naidu
b) Y. S. Jaganmohan Reddy
c) Kalvakuntla Chandrasekhara Rao
d) K. Rosaiah
4. Which of the following dynasties ruled Telangana?
a) Pala
b) Kakatiya
c) Sena
d) Chera
5. Who were rulers of Hyderabad in 1724-1948?
a) Peshwas
b) Nawabs
c) Amirs
d) Nizams
6. When was Telangana merged with Andhra Pradesh?
a) 5 March 1949
b) 7 May 1984
c) 14 July 2000
d) 1 November 1956
7. Which party demanded statehood for Telangana and contested elections in 1971 later merged with Congress?
a) Telangana Praja Samiti
b) Tamil Manila Congress
c) Dravida Munnethra Kazhagam
d) Utkala Congress
8. Which party formed Telangana’s first government?
a) Telugu Desam
b) Telangana Rashtra Samiti
c) YSR Congress
d) BJP
9. Which of the following districts is part of Telangana?
a) Anantapur
b) Guntur
c) Kurnool
d) Warangal
10. Which of the following districts is not part of Telangana?
a) Khammam
b) Nizamabad
c) Nellore
d) Adilabad

Telangana Quiz Questions with Answers

1. When was Telangana formed?
b) 2 June 2014
2. Who took oath as first Governor of Telangana?
a) E. S. L. Narasimhan
3. Who took oath as first Chief Minister of Telangana?
c) Kalvakuntla Chandrasekhara Rao
4. Which of the following dynasties ruled Telangana?
b) Kakatiya
5. Who were rulers of Hyderabad in 1724-1948?
d) Nizams
6. When was Telangana merged with Andhra Pradesh?
d) 1 November 1956
7. Which party demanded statehood for Telangana and contested elections in 1971 later merged with Congress?
a) Telangana Praja Samiti
8. Which party formed Telangana’s first government?
b) Telangana Rashtra Samiti
9. Which of the following districts is part of Telangana?
d) Warangal
10. Which of the following districts is not part of Telangana?
c) Nellore

Thank You

TSGENCO ECE FINAL KEY

ECE FINAL KEY

SBI Life - Smart income protect

Introduction:   SBI Life - Smart Income Protect is a savings plan with added advantage of life cover and regular cash inflow at the time you need. It is a participating traditional plan where you continue to pay your regular premiums over a period of 7, 12 or 15 years. Thereafter your payout period starts, where you get guaranteed (Condition apply$) regular annual payouts over a period of 15 years, meeting your various financial obligations.

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Product Snapshot

Age^ at Entry Policy term (years) Minimum Maximum 7 11 58 12 8 53 15 8 50 Age^ at Maturity Min: 18 years Max: 65 years Sum Assured Min: Rs.1,00,000/- (× 1,000/-) Max*:  No Limit Policy Term 7/12/15 years Premium Frequency Yearly / Half-yearly / Quarterly / Monthly# Premium Frequency Loading Half-Yearly: 52.0% of annual premium Quarterly: 26.5% of annual premium Monthly: 8.9% of annual premium Payout Period 15 years Payout Frequency Yearly

*The maximum sum assured would be subject to board approved underwriting policy. The maximum premium would be based on the sum assured offered. ^ All the references to age are age as on last birthday. # 3 Months premium to be paid in advance and renewal premium payment through Electronic Clearing System (ECS) or Standing Instructions (where payment is made either by direct debit of bank account or credit card) For Monthly Salary Saving Scheme (SSS), 2 month premium to be paid in advance and renewal premium payment is allowed only through Salary Deduction

Benefits:

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ECE books needed for gate preparation

Network Analysis by Alexander,
Network Analysis by roy choudary

Integrated Electronics - Jacob Millman & C. Halkias; Millman & Grabel 

Op. Amps & Linear Integrated Circuit - Gayakwad

Digital Logic & Computer Design - Moris Mano

Signals and System - Oppeheim, Willsky & Nacob 

Automatic Control System - Benjamin C. Kuo

CONTROL SYSTEMS by Norman nice.

Communication systems by simon haykins.

Control System Engg. - Nagrath & Gopal 

Principle of Communication System - Taub & Schilling 

Communication System - A. Bruu Carlson

Electromagnetic Waves & Radiating Systems - Jardon & Balmain; JD Kraus

MATHS any standard book.

How to crack gate

Crack GATE 2016 ECE

• Solve previous GATE and IES questions and other competitive exam questions
• Formulas should always be at your finger tips
• Take online mock tests.
• 3 months thorough preparation is sufficient.
• Prepare solutions for questions on the back of text books.
• Be positive always.
• Take time to solve questions during exam as 3 hours is a good time. 
• The subjects which you have studied well learn it completely so that no question is left out.
• Put special focus on linked answer and fill in blanks.
• You should practice at least 20-25 questions after every concept.
• A practice test with time on your own will increase your speed with accuracy.

TSGENCO SYLLABUS ELECTRONICS

TSGENCO_ECE_SYLLABUS

HOW TO CRACK BANK PO AND CLERK

Hi all,

Today the most abundantly available jobs in the market are the banking jobs especially PO and CLERK. Simple tips and good concentration while studying  and proper time division during the written test and a good interview will do.

Preparation for written common for clerk and po:

1) General aptitude take any one good book and solve all models.
2) Reasoning a high level reasoning for PO and low level reasoning for clerk.
3) English prepare well for sentence formations and vocabulary.
4) Last 3 months current affairs and banking knowledge and related updates.

Try to be accurate first divide the time slot. When you feel you can cross individual cutoff then take the section where you can score fast. Do not waste time.

Interview preparation should be excellent for PO and a moderate preparation is sufficient for clerk.

All the best.

Lattice and impurity scattering

Hi all,



Lattice scattering:
Lattice scattering is the scattering of ions by interaction with atoms in a lattice. This effect can be qualitatively understood as phonons colliding with charge carriers.
In the current quantum mechanical picture of conductivity the ease with which electrons traverse a crystal lattice is dependent on the near perfectly regular spacing of ions in that lattice. Only when a lattice contains perfectly regular spacing can the ion-lattice interaction (scattering) lead to almost transparent behavior of the lattice.
In the quantum understanding, an electron is viewed as a wave traveling through a medium. When the wavelength of the electrons is larger than the crystal spacing, the electrons will propagate freely throughout the metal without collision.

Impurity scattering:
In quantum mechanics, ionized impurity scattering is the scattering of charge carriers by ionization in the lattice. The most primitive models can be conceptually understood as a particle responding to unbalanced local charge that arises near a crystal impurity; not dissimilar to an electron encountering an electric field. This effect is the mechanism by which doping decreases mobility.
In the current quantum mechanical picture of conductivity the ease with which electrons traverse a crystal lattice is dependent on the near perfectly regular spacing of ions in that lattice. Only when a lattice contains perfectly regular spacing can the ion-lattice interaction (scattering) lead to almost transparent behavior of the lattice. Impurity atoms in a crystal have an effect similar to thermal vibrations where conductivity has a direct relationship between temperature.
A crystal with impurities is less regular than a pure crystal, and a reduction in electron mean free paths occurs. Impure crystals have lower conductivity than pure crystals with less temperature sensitivity in that lattice.

Thank You 

SBI Life - eshield

Introduction:   SBI Life - eShield is an Individual, Non Linked, Non Participating pure term plan, with options and benefits specially tailored for those who want the best financial protection at an affordable cost.
Key Features:
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•	Wide variety of plan options, which has level and increasing cover.
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•	Tax benefits* as per prevailing norms under the Income Tax Act, 1961.
*Tax benefits, are as per the provisions of the Income Tax laws & are subject to change from time to time. Please consult your tax advisor for details.
Product Snapshot
Plan Options • Level Cover • Level Cover with Accidental Death Benefit • Increasing Cover • Increasing Cover with Accidental Death Benefit Age^ at Entry Min: 18 years Max: For Level Cover & Level Cover with Accidental Death Benefit: 65 years For Increasing Cover & Increasing Cover with Accidental Death Benefit: 60 years Maximum Age^ at Maturity 70 years Basic Sum Assured Min: Rs. 20,00,000/- Sum Assured would be in multiples of Rs.1, 00,000 only. Max: No Limit (Subject to underwriting) Policy Term Min: For Level Cover & Level Cover with Accidental Death Benefit: 5 years For Increasing Cover & Increasing Cover with Accidental Death Benefit: 10 years Max: 30 years Premium Frequency Yearly Premium Payment term Same as Policy term Premium Amount Min: Rs. 3,500 Max: No Limit
^ All the references to age are age as on last birthday.
Effective Sum Assured:
•	Level Cover and Level Cover with Accidental Death Benefit: Effective Sum Assured on any day is equal to the Basic Sum Assured.
•	Increasing Cover and Increasing Cover with Accidental Death Benefit : Effective Sum Assured on any day will be the Basic sum assured increased at the rate of 10% simple interest after every 5th policy year without increasing the premium.
Benefits:
•	On Death:
	•	Depending upon the Plan option chosen, the nominee will receive the Effective sum assured at the time of death.
	•	Death benefit will be paid provided all regular premiums are paid and the policy is in force as on the date of claim.
•	On Maturity: No survival benefit available at the end of the term.
•	Other Benefits:
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	•	The Accidental Death Benefit will be equal to the Basic sum assured or Rs. 50 Lakhs whichever is lower.

SBI Life - Grameena Seva

Introduction : The objective of this product is to provide life cover to the deprived sections of the society at affordable costs thereby aiding them tide over difficult times in case of an unforeseen event. SBI Life - Grameen Bima is an individual, pure term, micro-insurance plan for the socially deprived and economically vulnerable segments of the population.
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	•	Registration based on a simple form
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* All references to age are age as on last birthday **Total Premium Amounts are inclusive of Service Tax./ Cess/ GST (currently only in case of J&K residents) and/ or any other statutory levy/ duty/ surcharge on your premiums, as notified by the Central and/or State Government from time to time as per the provisions of the prevalent tax laws, ^Aggregate Sum Assured under this plan will be capped at Rs. 50,000 for each life.
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		The surrender value paid will be:   Single Premium (exclusive of service tax) x 50% x Unexpired policy term / Total Term 1 Term is measured in completed months. 2 Unexpired term would be the total policy term in months less the completed number of months as on date of surrender.

SBI Life- Smart shield

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•	Large Sum Assured rebates.
•	You can also customize your coverage by choosing from a wide range of additional benefits such as SBI Life - Accidental Death Benefit Rider, SBI Life - Accidental Total and Permanent Disability Benefit Rider and Accelerated Critical Illness cover option.
•	Tax benefits* as per prevailing norms under the Income Tax Act, 1961.
*Tax benefits are as per Income Tax Laws & are subject to change from time to time. Please consult your Tax advisor for details.
Product Snapshot:
Age^ at Entry Min: 18  years Max: 60 years Age^ at Maturity Max: 65 years Plan Options i) Level Term Assurance ii) Increasing Term Assurance iii) Decreasing Term Assurance (Loan Protection) iv) Decreasing Term Assurance (Family Income Protection) Sum Assured Min: Rs 25,00,000 (in multiples of Rs.1,00,000) Max: No limit Policy Term Min: 5  years Max: For Level Term Assurance and Increasing Term Assurance and Decreasing Term Assurance (Family Income Protection): 30 years For Decreasing Term Assurance (Loan Protection): Equal to the outstanding loan term subject to maximum of 30 years Premium Paying Term Regular Premium - pay premium till the chosen policy term Single Premium - pay premium once for coverage till the chosen policy term Premium Modes For Level Term Assurance, Increasing Term Assurance: Single Premium (SP), or Regular Premium(RP) (Yearly / Half-yearly / Quarterly / Monthly#) For Decreasing Term Assurance (Loan Protection)and Decreasing Term Assurance (Family Income Protection) : Single Premium Premium Amounts Min   Single Premium : Rs. 15,000 Regular Premium :   Yearly : Rs 5,000 Half-yearly : Rs 2,500 Quarterly : Rs 1,250 Monthly# : Rs. 450 Max: No limit
^ All the references to age are age as on last birthday.   # For Monthly mode, 3 Months premium to be paid in advance and renewal premium payment through Electronic Clearing System (ECS) or Standing Instructions (where payment is made either by direct debit of bank account or credit card). For Monthly Salary Saving Scheme (SSS), 2 month premium to be paid in advance and renewal premium payment is allowed only through Salary Deduction.
Benefits:
•	Death Benefit: In case of the unfortunate demise of the life assured during the term of the policy, the nominee will receive the benefits, depending on the plan option chosen.
•	Maturity Benefit: No survival benefit available at the end of the term.
•	Other Benefits:
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	•	Accelerated Critical Illness benefit: You have the option to further enhance your Level Term Assurance and Increasing Term Assurance by opting for the Accelerated Critical Illness benefit. This option is available with Level Term Assurance and Increasing Term Assurance benefit.
•	Riders:
	•	SBI Life - Accidental Death Benefit Rider (UIN: 111B015V02) In case of death due to an accident, the Rider Sum Assured is payable in addition to normal death benefit.
	•	SBI Life - Accidental Total and Permanent Disability Benefit Rider (UIN: 111B016V02) The Rider Sum Assured will be paid on the Life Assured being found eligible for the Total Permanent Disability Benefit as defined in the policy document.
Tax Benefits
You are eligible for Income Tax benefits/exemptions as per the applicable income tax laws in India, which are subject to change from time to time. Thank You

TS GENCO ECE KEY 2015

TS GENCO ECE OFFICIAL KEY

ECE KEY

TIPS FOR BEL PROBATIONARY ENGINEER ELECTRONICS INTERVIEW

Hi Friends,

I have attended BEL Probationary engineer interview but am unable to crack it. It does not matter how well you write your exam interview is very important especially in BEL. If interview goes wrong hopes are lost.

Prepare on these topics as these are the subjects they are interested in :

1) Microwave engineering. Specially
2) Measurement of R,L,C elements.
3) Satellite communication.

People specialised in microwave and radar engineering have most likely chances to get through the interview round if written is cleared.

Please be careful while answering the questions in the interview. They will most likely question you based on your answer. Like ur interested subject, your experience, career, ur higher studies.

Basics of other ECE subjects

Thanks all

TS GENCO ELECTRICAL SUBJECT PREPARATION FOR ELECTRONICS BRANCH

Hi All,

Electrical machines is one of the important subjects and easiest subjects where you can score marks in the GENCO exam. In 2015 paper there are a good number of questions from this subject. You can score high if you read only small topic.

The best book for electronics students is none other than the standard books

BASIC ELECTRICAL ENGINEERING BY THEREJA. S.chand series.

Please do not commit mistake by reading the old book which do not consist of the objective questions. Take the latest version read the topics and try the objective questions on its back.

Read the topics as it is mentioned in the syllabus and better prepare the formulas of speed, frequency and other simple formulas and try for simple problems without using the calculator. Always remember the units which will also be questioned.
 As genco is related to power generation sector the frequency calculations, power claculations, speed and other phase calculations are necessary.

ALL THE BEST.....

TS GENCO telecommunication preparation electronics.

Hi friends,

We all know there are a list of new subjects added to the TS Genco electronics field. Among those the syllabus which is a bit difficult to find is telecommunication. I have found a book which consists of the entire syllabus whatever is mentioned in the syllabus part of telecommuncation.

The Author name is J.E Flood.
Title: Telecommunication Switching, Traffic and Networks.

I have gone through the recent question paper 2015 of electronics but most of these questions are not from this book. So refer this book but do not depend entirely. You can also follow other books such as THYAGARAJAN. Try to read the book with objective questions at the end of the book.

ALL THE BEST FOLKS...

How to prepare for TS GENCO Electronics?

How to prepare for the TS GENCO AE for ECE students. First and the foremost thing that you have to keep in mind is it does not matter how good you are prepared, it always depends on how well you execute in the examination. Do not make mistakes in the examination.

      The syllabus covers a vast area of instrumentation but questions will be very less 5-6 questions may be max 10. For instrumentation if you prepare  from the book a.k sahani it is more than sufficient. But also prepare from s.chand series which have objective questions at the end of the chapters. But read the question carefully before attempting  it. The subjects like Electrical machines, telecommunications and microprocessors along with all the core subjects of electronics and communication engineering subjects with special focus on control systems. Control systems is the subject where people do lose the score because it needs perfection. 

      Do not worry about the cutoff and just focus on what you know and apply basics as well as presence of mind. Those questions which you do not have answers put them which are related to calculations in the questions.

Cover the basic topics of the Electrical subjects such as machines from the basic books such as       B.L Thereja , no need for indepth analysis but surely formulae is needed to solve small problems also remember the relations between quantities such as frequency, speed etc...

Microprocessor is on electronic subject along in which a lot of question may be asked, but these are very simple questions such as flag formats, size, syntax, simple program will be given and  you will have to find the output, do not deviate from the syllabus , all the questions will be maximum from the syllabus. Always choose ans which are from your b.tech knowledge.

The subject that is both related to electrical as well as electronics is the instrumentation again from which lot of questions can be given. Use one standard book (A.K sahani) the book looks bulk but hope u do not need to read any other if u are good in this book. Read and practice the topics such as diode balancing conditions, calculation of resistances and capacitances, frequency calculations related to crystals. There will be simple problems related to these as there will not be use of the calculator.

Simpe EDC and Digital electronics questions which will come in all the examinations related to ece. Edc and digital electronics are easy scoring subjects as there will not be any confusion in the question asked.

Do not take it for granted the General awareness topic, people good in subject may take it for granted but this will boost the score like anything and will put u in competition as most people leave this topic, a must read topic. Read Telangana history movement and also current updates regarding Telangana and around the world and India.

For electrical topics read the s.chand series books, if you have time for instrumentation also this book once. For telecommunication also better read the same rather than other standard books.

Some tutorials you can find here on mychannel
How to prepare for tsgenco
How to prepare for tstransco