EMTL Notes: Aspirants looking to get hold of the EMTL Study Material and Lecture Notes can access the best notes for their preparation process or to have a revision of essential concepts.
The EMTL Notes and Study Materials acts as the principal study material and notes that foster and enhance better preparation and helps students score better grades. Students can refer to the EMTL Notes as per the latest curriculum from this article.
EMTL Notes give aspirants a head start as they will also acquire the latest Syllabus, Reference Books, and Important Questions List for EMTL notes over regular notes. EMTL Notes and Study Material PDF Free Download.
Participants can benefit from the EMTL Notes PDFs and Reference Books from this article and ace the preparation methods with the best and updated study resources and achieve better grades.
Introduction to EMTL Notes
In the past part, we have covered the fundamental numerical apparatuses expected to consider EM fields. We have just referenced in the past part that electric charge is an essential property of issue and charge exist in basic various of electronic charge. Electrostatics can be characterized as the investigation of electric charges very still. Electric fields have their sources in electric charges. ( Note: Almost all genuine electric fields change somewhat with time. Be that as it may, for some issues, the field variety is moderate and the field might be considered as static.
For some other cases, spatial dispersion is almost the same concerning the static case despite the fact that the genuine field may shift with time. Such cases are named as semi-static.) In this part, we first examine two major laws administering the electrostatic fields, viz, (1) Coulomb’s Law and (2) Gauss’ Law. Both of these laws have a test premise. Coulomb’s law is pertinent in discovering electric fields because of any charge dispersion, Gauss’ law is simpler to utilize when the conveyance is even.
EMTL Notes and Study Material PDF Free Download
Aspirants pursuing their Bachelors in Technology (B.Tech) or anybody who is interested in learning about the software can avail from the EMTL Notes and Study Material updated in this article. Students can support their preparation with the ultimate preparation tools that help you score more marks.
Pupils can get access to the downloadable format of the study material and notes and refer to them whenever during the preparation process. Use of the EMTL Notes and Study Materials as a reference will help candidates get a better understanding of the concepts and change their score chart.
Here, is a list of a few important notes for a thorough preparation of the EMTL course programme-
- EMTL Notes PDF
- EMTL Handwritten Notes PDFs
- EMTL Notes for CSE PDFs
- EMTL Question Paper PDFs
- EMTL PPT Notes PDF
EMTL Reference Books
Books are a rich source of information and students should refer to books that provide excellent conceptual background. Candidates can avail the best books for EMTL as recommended by the experts of the subject.
Pupils can refer and read through the EMTL Books and other Study Sources during your preparation.
The list of best and highly recommended books for EMTL preparation are as follows, and candidates can choose the book that meets their knowledge and prepare accordingly.
- Engineering Electromagnetic- Nathan Ida, 2ndEd., 2005, Springer (India) Pvt. Ltd., New Delhi.
- Engineering electromagnetic- William H. Hayt Jr. and John A. Buck, 7thEd., 2006, TMH.
- Electromagnetic Field theory and Transmission Lines-G. Sashibushana Rao, Wiley India, 2013.
- Elements of Electromagnetic- Matthew N.o. Sadiku, 4thEd. Oxford Univ. Press.
- Electromagnetic waves and Radiating Systems- E.C. Jordan and K.G. Balmain, 2ndEd., 2000, PHI.
EMTL Curriculum
The best way to make your preparation effective is with an initial idea and an outline of the EMTL Syllabus. Keeping in mind every student’s requirements, we have provided a detailed view of the EMTL curriculum.
EMTL Course Curriculum will give students a clear idea of what to study, and the unit-wise break up gives topics under each unit carefully and allot time to each topic.
Students must cover all the topics before attempting the EMTL exam so that the paper is reasonably comfortable at the time of the exam. Candidates must ensure awareness of the EMTL Syllabus as it prevents you from wasting unnecessary time on redundant topics.
The updated unit-wise breakup of the EMTL Syllabus is as follows-
| Unit | Topics |
| UNIT I | Electrostatics: Coulomb‘s law, Electric field Intensity, Fields due to different charge distributions, Electric Flux Density, Gauss law and its Applications, Electric Flux Density, Gauss law and its Applications, Electric Potential, Relation Between E and V, Maxwell‘s Two equations for Electrostatic Fields, energy Density, Maxwell‘s Two equations for Electrostatic Fields, energy Density, Illustrative Problems. Convection and Conduction Currents, Dielectric Constant, Isotropic and Homogeneous Dielectrics, Continuity Equation and Relaxation Time, Poisson‘s and Laplace‘s Equations, Capacitance- Parallel plate, Co-axial and Spherical capacitors, Illustrative Problems. |
| UNIT II | Magneto-statics: Biot-Savart Law, Ampere‘s circuital Law and Applications, Magnetic Flux Density, Maxwell‘s Two Equations for Magnetostatic fields, Magnetic Scalar and Vector Potentials, Forces due to Magnetic Fields, Ampere‘s force Law, Forces due to Magnetic Fields, Ampere‘s force Law, Forces due to Magnetic Fields, Ampere‘s force Law, Inductances and Magnetic Energy, Illustrative Problems. Maxwell‘s Equations (Time Varying Fields): Faraday‘s Law and Transformer emf, Inconsistence of Ampere‘s Law and Displacement Current density, Maxwell‘s Equations indifferent Final Forms and Word Statements, Conditions at a boundary Surface: Dielectric, dielectric-conductor Interfaces, Illustrative Problems. |
| UNIT III | EM Wave Characteristics-I: Wave Equations for conducting and Perfect Dielectric Media, Uniform Plane Waves-Definition, All Relations between E and H, Sinusoidal Variations, Wave Propagation in Lossless and Conducting Media, Conductors and Dielectrics-Characterization, Wave Propagation in good conductors and Good Dielectrics, Polarization, Illustrative Problems. EM Wave Characteristics-II: Reflection and Refraction of Plane waves-Normal and Oblique Incidences for Perfect Dielectric, Brewster angle, Critical Angle, Total Internal Reflection, Surface Impedance, Pointing Vector Pointing Theorem-Applications, Power Loss in Plane Conductor, Illustrative Problems. |
| UNIT-IV | Transmission Lines-I: Types, Parameters, Transmission line Equations, Primary and Secondary Constants, Expressions for Characteristic Impedance, Propagation Constant, Phase and Group Velocities, Infinite Line Concepts, Losslessness/Low Loss Characterization, Distortion-Condition for Distortionlessness and Minimum Attenuation, Loading- Types of loading, Illustrative Problems. |
| UNIT V | Transmission Lines-II: Input Impedance Relations, SC and OC Lines, Reflection Coefficient, VSWR, UHF Lines as Circuit Elements, λ/4, λ/2 and λ/8 Lines- Impedance Transformations, Significance of Zmin and Zmax, Smith Chart-Configuration and Applications, Single and Double Stub Matching, Illustrative Problems. |
List of EMTL Important Questions
- State stokes theorem.
- State the condition for the vector F to be solenoidal.
- State the condition for the vector F to be irrotational.
- Give the relationship between potential gradient and electric field.
- What is the physical significance of div D ?.
- What are the sources of electric field and magnetic field?
- State Divergence Theorem.
- Define divergence.
- State coulombs law.
- State Gauss law for electric fields.
Candidates studying EMTL can go through the list of essential questions mentioned below for the EMTL course programme. All the given review questions aim to help the candidates to excel in the examination.
FAQs on EMTL Notes
Question 1.
Classification of mediums
Answer:
Our first application of Maxwell’s equations will be in relation to electromagnetic wave propagation. The existence of EM waves, predicted by Maxwell’s equations, was first investigated by Heinrich Hertz. After several calculations and experiments, Hertz succeeded in generating and detecting radio waves, which are sometimes called Hertzian waves in his honour. In general, waves are a means of transporting energy or information. Typical examples of EM waves include radio waves, TV signals, radar beams, and light rays. All forms of EM energy share three fundamental characteristics: they all travel at high velocity; in travelling, they assume the properties of waves; and they radiate outward from a source, without the benefit of any discernible physical vehicles.
In this chapter, our major goal is to solve Maxwell’s equations and derive EM wave motion in the following media: = 0, = o, µ=µo) Lossless dielectrics ( = 0, = r 0,so, µ= µr µo, or < ) Lossy dielectrics # 0, = r o, µ= µr µo) Good conductors ( =, µ = µr µo, or > ) Where w is the angular frequency of the wave. Case 3, for lossy dielectrics, is the most general case and will be considered first. Once this general case is solved, we simply derive other cases (1,2, and 4) from it as special cases by changing the values of, and µ. However, before we consider wave motion in those different media, it is appropriate that we study the characteristics of waves in general.
Question 2.
State Columb’s law and write the equation for F that exist between two, unlike charges?
Answer:
Coulomb’s law is an experimental law formulated in 1785 by the French colonel, Charles Augustine de Coulomb. It deals with the force a point charge exerts on another point charge. By a point charge, we mean a charge that is located on a body whose dimensions are much smaller than other relevant dimensions. For example, a collection of electric charges on a pinhead may be regarded as a point charge. Charges are generally measured in coulombs (C).
One coulomb is approximately equivalent to 6 X 1018 electrons; it is a very large unit of charge because one electron charge e = -1.6019 X 10~19C. Coulomb’s law states that the force F between two point charges Q1 and Q2 is: Along the line joining them Directly proportional to the product Q1 Q2 of the charges Inversely proportional to the square of the distance R between them F= (KQ1Q2)/R2 Like charges (charges of the same sign) repel each other while unlike charges attract. The distance R between the charged bodies Q1 and Q2 must be large compared with the linear dimensions of the bodies; that is, Q1 and Q2 must be point charges. Q1 and Q2 must be static (at rest). The signs of Q1and Q2 must be taken into account in eq.
Question 3.
Forces Due To Magnetic Fields
Answer:
Having considered the basic laws and techniques commonly used in calculating magnetic field B due to current-carrying elements, we are prepared to study the force a magnetic field exerts on charged particles, current elements, and loops. Such a study is important to problems on electrical devices such as ammeters, voltmeters, galvanometers, cyclotrons, plasmas, motors, and magnetohydrodynamic generators. The precise definition of the magnetic field deliberately sidestepped in the previous chapter, will be given here. The concepts of magnetic moments and dipole will also be considered. There are at least three ways in which force due to magnetic fields can be experienced.
The force can be (a) due to moving charged particle in a B field, (b) on a current element in an external B field, or (c) between two current elements A. Force on a Charged Particle the electric force Fe on a stationary or moving electric charge Q in an electric field is given by Coulomb’s experimental law and is related to the electric field intensity E as Fe = QE This shows that if Q is positive, Fe and E have the same direction. A magnetic field can exert force only on a moving charge. From experiments, it is found that the magnetic force Fm experienced by a charge Q moving with a velocity u in a magnetic field B is Fm = QuX B
Conclusion
The information on EMTL Notes is genuine and reliable and the above mentioned Books and Study Materials aim to help and enhance student’s knowledge and understanding of the subject during preparations and at the time of examination. Students can refer and practice from the provided EMTL Books, Study Materials, and Important Questions from this article.