FUNDAMENTAL OF ELECTRONICS

FUNDAMENTAL OF ELECTRONICS ENGINEERING
SEM-I, 2011
UTU PREVIOUS YEAR QUESTION PAPERS

Time: 3 hours

Total marks: 100

Attempt any four parts:

1. What happens to the conductivity of semiconductors with the rise in temperature? Compare with the conductivity of metals.
2. What is meant by Fermi level in semiconductor?
3. At room temperature, the reverse saturation current is 0.3µA when a reverse bias is applied to a Ge diode. Find the value of current flowing in diode when 0.15V forward bias is applied.
4. Define conductivity. Derive the expression of conductivity in intrinsic and extrinsic semiconductors.
5. Explain the formation of depletion layer in a p-n junction diode.
6. Explain the transition capacitance and diffusion capacitance of a p-n junction diode.

BASIC ELECTRONICS

BASIC ELECTRONICS
SEM-I, 2010-11
B TECH QUESTION PAPERS
UTTARAKHAND TECHNICAL UNIVERSITY
(UTU)

Time: 3 Hours

Total Marks: 100

Note: Attempt all questions

Attempt any four parts of the following:

1. Draw the simplified energy level diagram of a solid.
2. On the basis of energy band gap theory, explain the formation of valence band. Differentiate among conductors, insulators and semiconductors.
3. Define the term conductivity, intrinsic concentration and energy gap of semiconductors.
4. The mobilities of free electrons and holes in a pure germanium are 0.38 and 0.18 m2/V-s. Find the value of intrinsic conductivity. Assume n =2.5 x 10¹⁹/m³ at room temperature.
5. A sample of silicon is doped with phosphorous to a density of 10²¹/m³ as well as Boron to a density of 5 x 10²⁰/m³. What will be conductivity of the Si sample? The electron mobility in silicon is 0.18 m²/V-s.

ENGINEERING PHYSICS

ENGINEERING PHYSICS
SEM-I, 2013
B TECH QUESTION PAPERS
UTTARAKHAND TECHNICAL UNIVERSITY
(UTU)

TIME: 3 HOURS

TOTAL MARKS: 100

Attempt any four:

5×4=20

1. What is Galilean Transformation? Derive Galilean transformation equations.
2. The rest mass of an electron is 9.1 ×10^-28gm. What will be its mass if it moving with of speed of light.Also deducts the fraction increase of mass of a particle for velocity 0.1 c.
3. Deduct Einstein mass energy relation equation,considering the variation of mass with velocity.
4. What is black body? State and explain Kirchhoff's law of heat radiations.
5. What is meant by black body radiation? Explain briefly the energy distribution in a black body spectrum with diagram.
6. What is Compton effect? Derive an expression for the frequency of the scattered photon in terms of the frequency of the incident radiation and scattering angle.

ELECTROMAGNETIC FIELD THEORY

ELECTROMAGNETIC FIELD THEORY
(EMFT)
SEM-IV, 2011
B TECH QUESTION PAPERS
UTTARAKHAND TECHNICAL UNIVERSITY
(UTU)

Time: 3 hours

Total marks:100

Attempt any four part of the following

1. State and explain Divergence theorem in detail.
2. Explain the cylindrical coordinate system with the concept of incremental length.
3. Two charges of similar sign and magnitude 1×10^-12 C are located one meter apart. What is the potential at a point that is midway between the two charges and 50cm from the line connecting the charges?
4. Find the divergence of A? If A = rsinΦI_r+2rcosΦI_Φ+2Z²I_z
5. Find the field of a sheet of charge in which symmetry is about plane?
6. Find the constant a, b, c so that V = i(x + 2y + az) + j(bx – 3y – z) + k(4x + cy + 2z) is irrational.

ANALOG INTEGRATED CIRCUITS (utu previous year question papers)

ANALOG INTEGRATED CIRCUITS
SEM-IV, 2011
B TECH QUESTION PAPER
UTTARAKHAND TECHNICAL UNIVERSITY
(UTU)

Time: 3 hours

Total marks: 100

Attempt any four of the following:

1. Draw and explain the working of Wilson current mirror circuit and its improved version.
2. Design a Widlar current source for operating a constant current I_o=10µA. Assume V_CC=10 V, V_BE= 0.7 V and β =125 (use V_T= 25 mV).
3. Draw and explain the circuit of a V_BE multiplier.
4. When does a current mirror circuit deviates from the ideal condition?
5. Why is cascade configuration used in an Op-amp? Are FET op-amp better than BJT?
6. Explain MOS current steering circuits in brief.

FUNDAMENTAL OF ELECTRONICS ENGINEERING (utu previous year question papers)

FUNDAMENTAL OF ELECTRONICS ENGINEERING
SEM-II, 2013
B TECH QUESTION PAPER
UTTARAKHAND TECHNICAL UNIVERSITY
(UTU)

Time: 3 Hours

Total Marks: 100

Attempt any four parts of the following:

1. Define Semiconductor materials on the basis of energy band diagram with example.
2. How electron hole pairs are generated. Explain working of different forms of semiconductors.
3. Why Si is preferred over Ge for manufacturing of electronics devices. How Semiconductors diode behave as switch.
4. Explain the effect of temperature on I-V characteristics of p-n junction diode.
5. Differentiate between extrinsic and intrinsic semiconductor on the basis of impurity present in them.
6. Explain the working of Semiconductor diode at different biasing conditions, no bias, forward bias & reverse bias condition.

(UTU) Mba old year question paper sub: Financial Insitutions and Markets

Uttrakhand Technical University
(UTU) Mba old year question paper
sub: Financial Instiutions and Markets
sem- 3rd

total marks: 70

time 3 hrs

Q1: Answer any four parts.

1. What is a financial system? Explain the constituents of the financial system.
2. List the latest development which have taken place is the Indian financial system.
3. Distinguish between capital market and money market.
4. Differentiate between primary market and secondary market.
5. Discuss venture capital funds as a type of financial services.
6. What do you mean by indigenous bankers?

MATHEMATICS-I (utu previous year question papers)

MATHEMATICS-I
SEM-I, 2012-13
B.TECH EXAMINATION
UTTARAKHAND TECHNICAL UNIVERSITY
utu previous year question papers

Time: 3 hours

Total marks: 100

Attempt any four parts of the following:

1. Reduce the following matrix to row echelon form and finds its rank:
   
2. Examine whether the following set of vectors is linearly independent and also find the dimension and the basis of the vectors:
   (1, 1, 0, 1), (1, 1, 1, 1), (-1, 1, 1, 1), (1, 0, 0, 1)
3. Check whether the following system is consistent, if it is then find its solution.
   
4. Verify Cayley-Hamilton theorem for the matrix
   
   Also obtain A^-1
5. Find the eigenvalues and corresponding eigenvectors of the given matrix:
   
6. The eigenvectors of a 3x3 matrix A corresponding to the eigenvalues 1, 1, 3 are [1, 0, -1]^T, [0, 1, -1]^T and [1, 1, 0]^T respectively. Find the matrix A.

MBA old year question papers sub: marketing of services

Uttarakhand Technical University
 (utu)
MBA old year question papers
sub: marketing of services
(A Marketing Management Group)

Note: Attempt only Five Questions:
          All questions carry equal marks.

time 3hrs

marks: 70 

Q1: Attempt any four out of following:

1. Service encounter.
2. Word of mouth.
3. The Gap Model of Services Quality.
4. Moment of truth.
5. Media gets angulfed by competition.
6. Extended marketing mix.

Q2: (A) What do you understand by the service quality? Explain the six steps approach of implementing quality service.

     (B) Utilizing the servuction model. Describe your experience with any service provider you had chance to interact with.

UTU MBA old year question paper sub: Strategic Management

UTU MBA previous year question paper
sub: Strategic Management (2010-2011)
sem- 3rd

marks:70,

 time 3hrs

Q1: Answer any four question.

1. Define the term strategic management. Briefly describe the main objectives of strategic management.
2. Explain the strategic management process.
3. Define strategy. How strategy and policy work together in an organization.
4. Explain the importance of vision and mission statement for an organization.
5. what are the forces which help to formulate objectives and goals?
6. Enumerate the components of strategic decision making.

DISCRETE STRUCTURE

DISCRETE STRUCTURE
SEM-III, 2012-13
B.TECH EXAMINATION
UTTARAKHAND TECHNICAL UNIVERSITY
(UTU)

Time: 3 Hours

Total Marks: 100

Do any four Questions:

1. Draw Venn Diagram for (A ∩ B) ⋃ C.
2. If f: R→R is a function such that f(x) = 3x + 5 prove that f is one - one onto. Also find the inverse of f.
3. Determine the number of integer solutions to the equation:
   x1 + x2 + x3 + x4 = 7
   where xi > =0 for all i = 1,2,3,4
4. Confirm or disprove the following identities:
   (A ⋃ B) X (C ⋃ D) = (A X C) ⋃ (B X D)
5. Let {A₁, A₂ ...A_k} be a partition of set A. We define a binary relation R on A such that an ordered pair (a, b) is in R if and only if a and b are in the same block of the partition. Show that R is an equivalence relation.
6. Show that among n+1 positive integers less than or equal to 2n there are two of them that are relative prime.

DIGITAL ELECTRONICS & DESIGN (utu previous year question papers)

DIGITAL ELECTRONICS & DESIGN ASPECTS
SEM-III, 2012-13
B.TECH EXAMINATION
UTTARAKHAND TECHNICAL UNIVERSITY
(UTU)

Time: 3 Hours

Total Marks: 100

Attempt any four parts of the following:

1. Determine the base b in each of the following cases:
   (a) (361)₁₀ = (551)_b
   (b) (859)₁₀ = (5B7)_b
2. Write the 8-bit signed magnitude , 2's complement and 1's complement from the following decimal numbers:
   (a) +119
   (b) -77
3. Write out the first ten number for a decimal weighted codes: 7, 4, 2, 1
4. Using the theorems of Boolean algebra simplify the following expression:
   
5. What is difference between a Latch and a flip-flop?
6. What is race around condition and how it is overcome?

POWER SYSTEM ANALYSIS (utu previous year question papers)

POWER SYSTEM ANALYSIS
SEM-VI, 2010
B.TECH EXAMINATION
UTTARAKHAND TECHNICAL UNIVERSITY
(UTU)

Time: 3 hours

Total Marks:100

Attempt any four of the following:

1. One conductor of a three phase line is open. The current flowing to the connected load through a line is 10A. With the current in line a as reference and assuming that line c is open, find the symmetrical components of the line currents.
2. The line to ground voltages on the high voltage sides of a step up transformer are 100 kV, 33 kV and 38 kV on phases a, b and c respectively. The voltage of phase a leads that of phase b by 100^o and lags that of phase c by 176.5^o. Determine analytically the symmetrical components of voltage.
3. The line currents in amperes in phase a, b and c respectively is 500+j150, 100-j600 and -300+j600 referred to the same reference vector. Find the symmetrical components of the currents.
4. Three identical Y connected resistors from a load bank with a three phase rating of 2300 V and 500 kVA. If the load bank has applied voltages |Vab| = 1840 V, |Vbc| = 2760 V and |Vca| = 2300 V, find the line voltages and currents in per unit into the load. Assume that the neutral system and select a base of 2300 V, 500 kVA.
5. A 25 MVA, 13.2 kV alternators with solidly grounded neutral has a sub transient reactance of 0.25 pu. The negative and zero sequence reactance are 0.35 and 0.1 pu. A single line to ground fault occurs at the terminals of an unloaded alternator, determine the fault current.
6. Draw the zero sequence equivalent circuit of 3 phase transformer for various possible combinations.