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MA8251 Notes Engineering Mathematics 2 Unit 5 LAPLACE TRANSFORMATION Regulation 2017 Anna University

MA8251 Notes Engineering Mathematics 2 Unit 5

MA8251 Notes Engineering Mathematics 2 Unit 5 LAPLACE TRANSFORMATION Regulation 2017 For Anna University Free download. ENGINEERING MATHEMATICS 2 MA8251 Unit 5 LAPLACE TRANSFORMATION Notes Pdf Free download.

Content Engineering Mathematics 2 ma8251 Unit 5 LAPLACE TRANSFORMATION

LAPLACE TRANSFORMATION

1. Laplace transformation-Conditions and existence

Definitions 1. Transformation

A “Transformation” is an operation which converts a mathematical expression to a different but equivalent form

2. Laplace Transformation

Let a function f(t) be continuous and defined for positive values of ‘t’. The Laplace transformation of f(t) associates a function s defined by the equation (ma8251 notes engineering mathematics 2 unit 5)

2. Transforms of Elementary functions-Basic Properties

2.1 Problems Based On Transforms Of Elementary Functions- Basic Properties

3. Transforms Of Derivatives And Integrals Of Functions

3.1 Transform of integrals

3.2 Derivatives of transform

3.3 Problems Based On Derivatives Of Transform (ma8251 notes engineering mathematics 2 unit 5)

4 Transforms Of Unit Step Function And Impulse Function

4.1 Problems Based On Unit Step Function (Or) Heaviside’s Unit Step Function

Define the unit step function. Solution: The unit step function, also called Heaviside’s unit function (ma8251 notes engineering mathematics 2 unit 5)

5 Transform Of Periodic Functions Definition:

(Periodic) A function f(x) is said to be “periodic” if and only if f(x+p) = f(x) is true for some value of p and every value of x. The smallest positive value of p for which this equation is true for every value of x will be called the period of the function.

6 Inverse Laplace Transform

a.If L[f(t)] = F(s), then L–1[F(s)] = f(t) where L–1 is called the inverse Laplace transform operator. b.If F1(s) and F2(s) are L.T. of f(t) and g(t) respectively then

7. Convolution theorem (ma8251 notes engineering mathematics 2 unit 5)

8. Initial and final value theorems

8.1 Initial value theorem

8.2 Final value theorem

9. Solution of linear ODE of Second Order with constant coefficients (ma8251 notes engineering mathematics 2 unit 5)

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MA8251 Notes Engineering Mathematics 2 Unit 4 COMPLEX INTEGRATION Regulation 2017 Anna University

MA8251 Notes Engineering Mathematics 2 Unit 4

MA8251 Notes Engineering Mathematics 2 Unit 4 COMPLEX INTEGRATION Regulation 2017 For Anna University Free download. ENGINEERING MATHEMATICS 2 MA8251 Unit 4 COMPLEX INTEGRATION Notes Pdf Free download.

Content Engineering Mathematics 2 ma8251 Unit 4 COMPLEX INTEGRATION

COMPLEX INTEGRATION

1. Introduction

2. Cauchy’s Theorem

2.1 Definitions

2.1.1Connected Region

A connected region is one which any two points in it can be connected by a curve which lies entirely with in the region.

2.1.2 Simply connected region

A curve which does not cross itself is called a simple closed curve. A region in which every closed curve in it encloses points of the region only is called a simply connected region. (ma8251 notes engineering mathematics 2 unit 4)

2.1.3 Contour integral

An integral along a simple closed curve is called a contour integral.

2.1.4 Cauchy’s Integral Theorem

If a function f(z) is analytic and its derivative f0(z) is continuous at R all points inside and on a simple closed curve c, then c f(z)dz = 0:

2.1.5 Cauchy’s Integral formula

If f(z) is analytic inside and on a closed curve c of a simply connected region R and if a is any point with in c, then (ma8251 notes engineering mathematics 2 unit 4)

2.1.6 Cauchy’s integral formula for derivative

If a function f(z) is analytic within and on a simple closed curve c and a is any point lying in it, then

3. Taylor’s and Laurent’s

3.1 Taylor’s Series.

A function f(z), analytic inside a circle C with center at a, can be expanded in the series

3.2 Laurent’s Series.

Let C1; C2 be two concentric circles jz aj = R1 and jz aj = R2 where R2 < R1: Let f(z) be analytic on C1andC2 and in the annular region R between them. Then, for any point z in R, (ma8251 notes engineering mathematics 2 unit 4)

4. Singularities

5. Residues

6. Evaluation of real definite Integrals as contour integrals

7. Applications (ma8251 notes engineering mathematics 2 unit 4)

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Subject name ENGINEERING MATHEMATICS 2
Regulation 2017 Regulation

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MA8251 Notes Engineering Mathematics 2 Unit 3 ANALYTIC FUNCTIONS Regulation 2017 Anna University

MA8251 Notes Engineering Mathematics 2 Unit 3

MA8251 Notes Engineering Mathematics 2 Unit 3 ANALYTIC FUNCTIONS Regulation 2017 For Anna University Free download. ENGINEERING MATHEMATICS 2 MA8251 Unit 3 ANALYTIC FUNCTIONS Notes Pdf Free download.

Content Engineering Mathematics 2 ma8251 Unit 3 ANALYTIC FUNCTIONS

ANALYTIC FUNCTIONS

1. Introduction –Function of A Complex Variable

1.1 Function of Complex Variable Many complicated integrals of real functions are solved with the help of complex variable. They are very useful in solving large number of engineering and science problems

1.2 Complex Variable:

1.3 Function of Complex Variable:

z=x+ i y and w=u+ iv are two complex variable. If for each value of z in a given region R of the complex plane there corresponds one or more values of w, then w is called a function of z and it is denoted by w=f(z)=u(x, y)+iv(x, y)where u(x, y) ,v(x ,y) are real functions of the real variable x and y. (ma8251 notes engineering mathematics 2 unit 3)

1.4 Single Valued Function

If for each value of z in R, there is correspondingly only one value of w, the w is called a single valued function of z.

2. Analytic Functions(C-R Equations)

2.1 Limit of The Function:

2.2 Continuity:

3. Harmonic and Orthogonal Properties Of Analytic Functions

3.1 Laplace Equation: (ma8251 notes engineering mathematics 2 unit 3)

3.2 Properties Of Analytic Functions And Harmonic Conjugate

3.3 Problems Based On Harmonic Conjugate

4. Construction of Analytic Functions

5. Conformal Mapping

5.1 Definition:

The transformation w=f(z) is called as conformal mapping if it preserves angle between every pair of curves through a point, both in magnitude and sense The transformation w=f(z) is called as Isogonal mapping if it preserves angle between every pair of curves through a point in magnitude but altered in sense (ma8251 notes engineering mathematics 2 unit 3)

5.2 Standard Transformations

5.3 Problems Based on Transformation

6. Bilinear Transformation (ma8251 notes engineering mathematics 2 unit 3)

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Subject name ENGINEERING MATHEMATICS 2
Regulation 2017 Regulation

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MA8251 Notes Engineering Mathematics 2 Unit 2 VECTOR CALCULUS

MA8251 Notes Engineering Mathematics 2 Unit 2

MA8251 Notes Engineering Mathematics 2 Unit 2 VECTOR CALCULUS Regulation 2017 For Anna University Free download. ENGINEERING MATHEMATICS 2 MA8251 Unit 2 VECTOR CALCULUS Notes Pdf Free download.

Content Engineering Mathematics 2 ma8251 Unit 2 Vector Calculus

1 Gradient-Directional Derivative

1.1. Gradient

1(a) The Vector Differential Operator

1(b) The Gradient (Or Slope Of A Scalar Point Function)

1.2. Directional Derivative

1.3. Unit Tangent Vector

1.4 Normal Derivative

1.5 Unit Normal Vector

1.6 Angle Between The Suraces

1.7 .Scalar Potential (ma8251 notes engineering mathematics 2 unit 2)

1. 8 The Vector Equation of the Tangent Plane And Normal Line to the Surface

2. Divergence And Curl –Irrotational And Solenoidal Vector Fields Divergence

2.1 Divergence and curl

2.2 SOLENOIDAL VECTOR,IRROTATIONAL VECTOR:

3 Vector Integration

3.1. Line Integral:

3.2. Surface Integral: Definition: Consider a surface S .Let n denote the unit outward normal to the surface S. Let R be the projection of the surface x on xy plane. Let Vec f be a vector function defined in some region containing the surface S, then the surface integral of Vector f is defined to be (ma8251 notes engineering mathematics 2 unit 2)

3.3. Volume Integral:

3.4 Tutorial Problems:

4 Green’s Theorem In A Plane;(Excluding proof)

5 Gauss Divergence Theorem:(Excluding proof)

Statement: The surface integral of the normal component of a vector function F over a closed surface S enclosing volume V is equal to the volume integral of the divergence of F taken throughout the

6 Stoke’s Theorem(Excluding proof)

Statement: The surface integral of the normal component of the curl of a vector function F over an open surface S is equal to the line integral of the tangential component of F around the closed curve C bounding S. (ma8251 notes engineering mathematics 2 unit 2)

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MA8251 Notes Unit 4 ENGINEERING MATHEMATICS 2


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MA8251 Notes ENGINEERING MATHEMATICS 2 Unit 1

MA8251 Notes Engineering Mathematics 2 Unit 1

MA8251 Notes Engineering Mathematics 2 Unit 1 Matrix Regulation 2017 For Anna University Free download. ENGINEERING MATHEMATICS 2 MA8251 Unit 1 Notes Pdf Free download.

Content MA8251 Notes Engineering Mathematics 2 Unit 1 Matrix:

  • MATRIX
  • CHARACTERISTIC EQUATION
  • EIGEN VALUE
  • EIGEN VECTOR
  • LINEARLY DEPENDENT AND INDEPENDENT EIGEN VECTOR
  • PROPERTIES OF EIGEN VALUES AND EIGEN VECTORS:
  • CAYLEY HAMILTON THEOREM:
  • DIAGONALISATION OF A MATRIX
  • DIAGONALISATION BY ORTHOGONAL
  • TRANSFORMATION OR ORTHOGONAL REDUCTION
  • QUADRATIC FORMS
  • NATURE OF QUADRATIC FORMS:
  • RULES FOR FINDING NATURE OF QUADRATIC FORM USING PRINCIPAL SUBDETERMINANTS (ma8251 notes engineering mathematics 2 unit 1)

CHARACTERISTIC EQUATION Let ‘A’ be a given matrix. Let λ be a scalar. The equation det [A- λ I]=0 is called the characteristic equation of the matrix A.

EIGEN VALUE The values of λ obtained from the characteristic equation |A- λ I|=0 are called the Eigen values of A.

EIGEN VECTOR Let A be a square matrix of order ‘n’ and λ be a scalar, X be a non- zero column vector such that AX = λX.  (ma8251 notes engineering mathematics 2 unit 1)

LINEARLY DEPENDENT AND INDEPENDENT EIGEN VECTOR Let ‘A’ be the matrix whose columns are eigen vectors. (i) If |A|=0 then the eigen vectors are linearly dependent. (ii) If |A|=!0 then the eigen vectors are linearly independent.

PROPERTIES OF EIGEN VALUES AND EIGEN VECTORS:

Property 1: (I) The sum of the Eigen values of a matrix is equal to the sum of the elements of the principal diagonal (trace of the matrix). i.e., λ1+ λ2+ λ3=a11+a22+a33 (ii)The product of the Eigen values of a matrix is equal to the determinant of the matrix. i.e., λ1 λ2 λ3=|A|

Property 2: A square matrix A and its transpose ܣ have the same Eigen values.

Property 3: The characteristic roots of a triangular matrix are just the diagonal elements of the matrix.

Property 4: If λ is an Eigen value of a matrix A, then 1/ λ, (λ=!0) is the Eigen value of A-1

Property 5: If λ is an Eigen value of an orthogonal matrix A, then 1/ λ, (λ=!0) is also its Eigen value. (ma8251 notes engineering mathematics 2 unit 1)

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MA8251 Notes Engineering Mathematics 2 Unit 1 Click here to Download

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BE8255 Question Bank Basic Electrical Electronics and Measurement Engineering Regulation 2017 Anna University

BE8255 Question Bank Basic Electrical Electronics and Measurement Engineering

BE8255 Question Bank Basic Electrical Electronics and Measurement Engineering Regulation 2017 Anna University free download. Basic Electrical Electronics and Measurement Engineering Question Bank BE8255 BEEME Pdf Free Download.

Sample BE8255 Question Bank Basic Electrical Electronics and Measurement Engineering:

1 Define Electrical Machine and classify them? BTL 3 Apply

2 Briefly discuss about working principle of DC Generator BTL 2 Understand

3 What are the major parts of a DC generator? BTL 1 Remember

4 What is a commutator? BTL 1 Remember

5 Compare lap and wave windings. BTL 2 Understand

6 Define back emf. BTL 1 Remember (BE8255 Question Bank Basic Electrical Electronics and Measurement Engineering)

7 Mention the speed control methods of DC shunt motors? BTL 3 Apply

8 What is meant by synchronous speed? BTL 1 Remember

9 Explain in brief about rotating magnetic field? BTL5 Evaluate

10 Define slip and rotor frequency BTL 2 Understand

11 State double field revolving field theory. BTL 3 Apply

12 Define stepper motor. BTL 1 Remember (BE8255 Question Bank Basic Electrical Electronics and Measurement Engineering)

13 List the merits and demerits of stepper motor BTL 4 Analyze

14 Give the basic principle of BLDC motor BTL 3 Apply

15 Comparison of Brushed DC motors and BLDC. BTL 2 Understand

16 Define transformer. BTL 2 Understand

17 Give the basic constructional parts of a transformer BTL5 Evaluate

18 Enumerate the voltage transformation ratio. (BE8255 Question Bank Basic Electrical Electronics and Measurement Engineering)

19 What are the properties of ideal transformer? BTL 1 Remember

20 Define all day efficiency of a transformer

Subject Name BASIC ELECTRICAL ELECTRONICS AND MEASUREMENT ENGINEERING
Subject Code BE8255
Regulation 2017
File PDF

BE8255 Question Bank Basic Electrical Electronics and Measurement Engineering Click here to download

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Important question

BE8255 important 16 Mark questions Basic Electrical Electronics and Measurement Engineering Regulation 2017 Anna University

BE8255 important 16 Mark questions Basic Electrical Electronics and Measurement Engineering

BE8255 important 16 Mark questions Basic Electrical Electronics and Measurement Engineering Regulation 2017 Anna University free download. Basic Electrical Electronics and Measurement Engineering important 16 Mark questions BE8255 BEEME Pdf Free Download.

Sample BE8255 important 16 Mark questions Basic Electrical Electronics and Measurement Engineering

1 Explain with the help of a sketch, the constructional features of a
dc machine and briefly describe the functions of armature core,
commutator and brushes. (13)

2 (i) Briefly explain about the principle of operation of DC
generator.(6)
(ii) Arrive at an Emf equation of DC generator. (7)

3 A six-pole, lap-connected generator is driven at 600rpm. It has 100
slots with 24 conductors per slot. What is the magnitude of the
generated emf? If the number of conductors per slot is changed to
20.At what speed should the generator be run for the same voltage
to be generated? The flux per pole is 0.02Wb.(13) (BE8255 important 16 Mark questions Basic Electrical Electronics and Measurement Engineering)

4 (i) Explain the principle of operation of DC motor.(7)
(ii) Derive an expression for the torque developed by a dc motor.
(6 )

5 Discuss the various methods of speed control of DC motors. (13)

6 A 300V, four-pole dc motor draws a current of 50A when supplying
a certain load. The armature is wave-wound and has 600
conductors. If the flux per pole is 40mwb and the armature
resistance. (13)

7 Explain with sketches the constructional features of a synchronous
machine. (13) (BE8255 important 16 Mark questions Basic Electrical Electronics and Measurement Engineering)

8 Explain the Principle of operation of a three phase induction motor
and distinguish between slip and rotor frequency. (13)

9 Derive an expression for the torque developed by a three-phase
induction motor. (13) (BE8255 important 16 Mark questions Basic Electrical Electronics and Measurement Engineering)

10 Explain the principle of operation of stepper motors with their
merits and demerits. (13)

11 Write detailed note on how rotation occurs in a BLDC motor and
mention a few of its applications. (13)

12 State the various parts of a transformer and their function. (13) (BE8255 important 16 Mark questions Basic Electrical Electronics and Measurement Engineering)

Subject Name BASIC ELECTRICAL ELECTRONICS AND MEASUREMENT ENGINEERING
Subject Code BE8255
Regulation 2017
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BE8254 Question Bank Basic Electrical and Instrumentation Engineering Regulation 2017 Anna University

BE8254 Question Bank Basic Electrical and Instrumentation Engineering

BE8254 Question Bank Basic Electrical and Instrumentation Engineering Regulation 2017 Anna University free download.

BEIE Basic Electrical and Instrumentation Engineering Question Bank is provided to download for free in pdf.

Sample BE8254 Question Bank Basic Electrical and Instrumentation Engineering:

1. Point out the advantages of 3Φ system over 1Φ system. 4 Analyze

2. Define power factor. 1 Remember

3. Define line voltage and line current. 1 Remember

4. Write the expression for determining reactive and apparent power in a three
phase circuit.

5. Compare star and delta connected system. 3 Apply (BE8254 Question Bank Basic Electrical and Instrumentation Engineering)

6. What is balanced and unbalanced system? 2 Understand

7. Draw the phasor diagram of line currents and line voltages of a balanced delta
connected load.

8. Evaluate the voltage across Y and B in a 3 Φ balanced delta system with
voltage across R and Y is 400∠00 V. Assume RYB phase sequence

9. A 3Φ 400V supply is given to a balanced star connected load of impedance 8+j6
ohms in each branch. Formulate the line current. (BE8254 Question Bank Basic Electrical and Instrumentation Engineering)

10. In two wattmeter power measurement method, if one wattmeter reads zero,
analyze the power factor of the circuit.

11. What are the requirements of protection? 2 Understand

12. What are the basic requirements of a circuit breaker? 2 Understand

13. Differentiate between fuse and protective relay. 2 Understand

14. What is the importance of arc resistance? On what factor does it depend?

15. Distinguish between recovery voltage and restriking voltage? 3 Apply

16. Define the term maximum demand. 1 Remember (BE8254 Question Bank Basic Electrical and Instrumentation Engineering)

17. List the objectives of tariff and the factors affecting it. 1 Remember

18. What is meant by relay operating tme? 1 Remember

19. Write the effect of power factor in energy consumption billing. 3 Apply

20. Calculate the power factor if V(t)=Vm sinωt and I(t)=Im sin(ωt -450) (BE8254 Question Bank Basic Electrical and Instrumentation Engineering)

Subject Name BASIC ELECTRICAL AND INSTRUMENTATION ENGINEERING
Subject Code BE8254
Regulation 2017
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BE8254 Question Bank Basic Electrical and Instrumentation Engineering Click here to download

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BE8254 important 16 Mark questions Basic Electrical and Instrumentation Engineering Regulation 2017 Anna University

BE8254 important 16 Mark questions Basic Electrical and Instrumentation Engineering

BE8254 important 16 Mark questions Basic Electrical and Instrumentation Engineering Regulation 2017 Anna University free download.

BEIE Basic Electrical and Instrumentation Engineering important 16 Mark questions is provided to download for free in pdf.

Sample BE8254 important 16 Mark questions Basic Electrical and Instrumentation Engineering

1. A symmetrical three phase three wire 440V supply to a star connected load. The impedance in each branch are =2+j3Ω, =1-j2Ω and =3+j4Ω. Find its
equivalent delta connected load. (16)

2. A three phase balanced delta-connected load of 4+j8Ω is connected across a
400V, 3Ø balanced supply. Determine the phase currents and line currents
(Phase sequence in RYB). (16)

3. A symmetrical three –phase,three wire 400 V supply is connected to a deltaconnected
load.Impedances in each branch are ZRY=10∠ 300 Ω,ZYB= 10∠450Ω
and ZBR=2.5∠600 Ω . Find its equivalent star-connected load. (16) (BE8254 important 16 Mark questions Basic Electrical and Instrumentation Engineering)

4. (i). A three-phase four wire 120V ABC system feeds an unbalanced Yconnected
load with ZA=5∠00Ω ZB=10∠300 Ω and ZC=20∠600
Ω.Obtain the four line currents. (8)

(ii) Three impedances Z1=(17.32+j10) ,Z2=(20+j34.64)and Z3=(0-j10) ohms
are delta connected to a 400V,three phase system. Determine the phase
currents, line currents and total power consumed by the load. (8)

5. Explain three phase power measurement by 2 wattmeter method for star and
delta connected load and determine the power equation and draw the phasor
diagram. (16)

6. (i). Compare overhead and underground transmission lines. (8) 1 Remember
(ii). Explain about the conversion of star and delta conversion and write its
expressions for each conversion. (8) (BE8254 important 16 Mark questions Basic Electrical and Instrumentation Engineering)

Subject Name BASIC ELECTRICAL AND INSTRUMENTATION ENGINEERING
Subject Code BE8254
Regulation 2017
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BE8254 important 16 Mark questions Basic Electrical and Instrumentation Engineering Click here to download

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BE8251 Important 16 Mark questions Basic Electrical and Electronics Engineering regulation 2017 Anna University

BE8251 Important 16 Mark questions Basic Electrical and Electronics Engineering

BE8251 Important 16 mark questions Basic Electrical and Electronics Engineering BEEE for regulation 2017 Anna University Free download. Basic Electrical and Electronics Engineering Important 16 mark questions BEEE pdf free download.

Sample BE8251 Important 16 mark questions Basic Electrical and Electronics Engineering BEEE

1. With a neat sketch, explain the construction, working
of DC Motor and also explain the different parts. (16)

2. (i) With a neat diagram explain the construction and
working of D.C. Generator. (12)
(ii) Derive the EMF equation. (4)  (BE8251 Important 16 mark questions Basic Electrical and Electronics Engineering)

3. (i) Obtain the mathematical expression for
generated EMF or EMF Equation of Generator and
explain each term. (8)
(ii) Calculate the generated EMF by 4-pole wave
wound generator having 65 slots with 12 conductors
per slot when driven at 1200 rpm the flux per
pole is 0.02Weber. (8)

4. Obtain the mathematical equation for voltage or
current equation and also explain for (i) DC Series
Generator (ii) DC Shunt Generator (iii) DC Compound
Generator with suitable diagram for each. (16) (BE8251 Important 16 mark questions Basic Electrical and Electronics Engineering)

5. What is meant by DC Motor? Describe the terms such
as (i) Faraday’s Law of ElectroMagnetic Induction. (ii)
Fleming’s Left Hand rule.(iii) Back or Counter emf.
(iv) Voltage Equation of DC Shunt Motor.
(v) Armature Torque of DC Motor. (16)

6. (i) Describe various types of self excited Dc
generators with their circuit layout. (8)
(ii) Explain the characteristics of DC shunt motor. (8) (BE8251 Important 16 mark questions Basic Electrical and Electronics Engineering)

7. (i) A 200V Dc shunt motor takes a total current
of 100A and runs at 750 rpm. The resistance of the
armature winding and of shunt field winding is0.1 Ω
and 40Ω respectively. Find the torque developed by the
armature. (8)
(ii) Explain the basic nature of the emf induced in
the armature of a DC machine. (4)
(iii)How can the alternating current waveform in
the armature be converted into a DC waveform? (4)

8. A 25kW, 250V, dc shunt generator has armature
and field resistances of 0.06 ohm and 100 ohm
respectively. Determine the total armature power
developed when working (i) as a generator delivering
25 kW output and (ii) as a motor taking 25kW. (16) (BE8251 Important 16 mark questions Basic Electrical and Electronics Engineering)

9. What is meant by Transformer? Draw the circuit
diagram for Single Phase Transformer and also
explain the Principle, Construction,Working of it. (16)

Subject name BASIC ELECTRICAL AND ELECTRONICS ENGINEERING (BEEE)
Sub Code BE8251
Semester 2
Regulation 2017 Regulation

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