# ELECTROMAGNETIC FIELD THEORY FUNDAMENTALS BY BHAG SINGH GURU PDF

Cambridge University Press. - Electromagnetic Field Theory Fundamentals, Second Edition. Bhag Singh Guru and Huseyin R. Electromagnetic Field Theory Fundamentals 2nd Edition by Bhag Singh Guru and Huseyin R Hiziroglu (1) Part1 - Free ebook download as PDF File .pdf), Text . Cambridge Core - Electromagnetics - Electromagnetic Field Theory Fundamentals - by Bhag Singh Guru.

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Cambridge University Press - Electromagnetic Field Theory Fundamentals, Second Edition Bhag Singh Guru and Huseyin R. Hiziroglu Excerpt. Download Electromagnetic Field Theory Fundamentals, 2nd Edition by Bhag Singh Guru and Hüseyin R. Hiziroglu. Electromagnetic Field Theory Fundamentals (2nd ed.) by Bhag Singh Guru. Read online, or download in secure PDF or secure EPUB format.

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## Electromagnetic Field Theory Fundamentals

Electromagnetic Field Theory Exercises , , , Electromagnetic Field Theory for Engineers and Physicists [1 ed. Springer-Verlag Berlin Heidelberg. Electromagnetic field theory for engineers and physicists [1 ed. Guru B. Electromagnetic Field Theory Fundamentals [2ed. Draft] Cambridge University Press. Guru , H. Electromagnetic Field Theory Fundamentals [2 ed. Electromagnetic field theory fundamentals [2nd ed] , , Gerd Mrozynski , Matthias Stallein auth.

Electromagnetic Field Theory: A Collection of Problems [1 ed. We do have some intuitive feelings about these quantities but lack precise definitions. To measure and express each of these quantities, we need to define a system of units.

In the International System of Units SI for short , we have adopted the units of kilogram kg for mass, meter m for length, second s for time, coulomb C for charge, and kelvin K for temperature.

Units for all other quantities of interest are then defined in terms of these fundamental units. Therefore, the ampere is a derived unit.

Hiziroglu Excerpt More information 2 1 Electromagnetic field theory Table 1. Unit conversion factors From Multiply by To obtain gilbert 0. Since English units are still being used in the industry to express some field quantities, it is necessary to convert from one unit system to the other.

Table 1. Hiziroglu Excerpt More information 3 1.

Prior to undertaking the study of electromagnetic fields we must define the concept of a field. When we define the behavior of a quantity in a given region in terms of a set of values, one for each point in that region, we refer to this behavior of the quantity as a field.

The value at each point of a field can be either measured experimentally or predicted by carrying out certain mathematical operations on some other quantities.

From the study of other branches of science, we know that there are both scalar and vector fields. Some of the field variables we use in this text are given in Table 1. There also exist definite relationships between these field quantities, and some of these are given in Table 1.

Hiziroglu Excerpt More information 4 1 Electromagnetic field theory From the equations listed in Table 1. Vector analysis is the language used in the study of electromagnetic fields. Without the use of vectors, the field equations would be quite unwieldy to write and onerous to remember. When expressed in scalar form, this equation yields a set of three scalar equtions.

In addition, the appearance of these scalar equations depends upon the coordinate system. Moreover, the vector representation is independent of the coordinate system. Thus, vector analysis helps us to simplify and unify field equations. The student may be competent to perform such vector operations as the gradient, divergence, and curl, but may not be able to describe the sig- nificance of each operation. The knowledge of each vector operation is essential to appreciate the development of electromagnetic field theory.

## Electromagnetic Field Theory Fundamentals (2nd ed.)

Quite often, a student does not know that a the unit vector that transforms a scalar surface to a vector surface is always normal to the surface, b a thin sheet negligible thickness of paper has two surfaces, c the direction of the line integral along the boundary of a surface depends upon the direction of the unit normal to that surface, and d there is a difference between an open surface and a closed surface.

These concepts are important, and the student must comprehend the significance of each.

There are two schools of thought on the study of vector analysis. Hiziroglu Excerpt More information 5 1.

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We prefer the latter approach and for this reason have devoted Chapter 2 to the study of vectors. Quite often a student does not understand why we present the same idea in two different forms: the differential form and the integral form.

It must be pointed out that the integral form is useful to explain the significance of an equation, whereas the differential form is convenient for performing mathematical operations. This equation states that the divergence of current density at a point is equal to the rate at which the charge density is changing at that point. The usefulness of this equation lies in the fact that we can use it to calculate the rate at which the charge density is changing at a point when the current density is known at that point.

However, to highlight the physical significance of this equation, we have to enclose the charge in a volume v and perform volume integration. In other words, we have to express 1.

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We can also interchange the operations of integration and differentiation on the right-hand side of equation 1. The integral on the left-hand side represents the net outward current I through the closed surface s bounding volume v. The integral on the right-hand side yields the charge q inside the volume v.

This equation, therefore, states that the net outward current through a closed surface bounding a region is equal to the rate at which the charge inside the region is decreasing with time. Hiziroglu Excerpt More information 6 1 Electromagnetic field theory The details of the preceding development are given in Chapter 4. We used this example at this time just to show that 1. Once again we face the dilemma of how to begin the presentation of electromagnetic field theory.

We, however, think that the field theory should always be developed by making maximum possible use of the concepts previously discussed in earlier courses in physics.

For this reason we first discuss static fields. In the study of electrostatics, or static electric fields, we assume that a all charges are fixed in space, b all charge densities are constant in time, and c the charge is the source of the electric field. Our interest is to determine a the electric field intensity at any point, b the potential distribution, c the forces exerted by the charges on other charges, and d the electric energy distribution in the region.

We will also explore how a capacitor stores energy. We will show that the electric field at any point is perpendicular to an equipotential surface and emphasize its ramifica- tions.

Some of the equations pertaining to electrostatic fields are given in Table 1. Hiziroglu Excerpt More information 7 1.

If the movement of the charge is restricted in such a way that the resulting current is constant in time, the field thus created is called a magnetic field. Since the current is constant in time, the magnetic field is also constant in time. The branch of science relating to constant magnetic fields is called magnetostatics, or static magnetic fields.

In this case, we are interested in the determination of a magnetic field intensity, b magnetic flux density, c magnetic flux, and d the energy stored in the magnetic field. From time to time we will also stress the correlation between the static electric and magnetic fields.

Some of the important equations that we will either state or formulate in magnetostatics are given in Table 1. There are numerous practical applications of static fields. Both static electric and magnetic fields are used in the design of many devices. For example, we can use a static electric field to accelerate a particle and a static magnetic field to deflect it.

We have devoted Chapter 6 to address some of the applications of static fields. The instructor may decide to highlight the salient features of each application and then treat it as a reading assignment.In this book we discuss only rectangular waveguides. The branch of science relating to constant magnetic fields is called magnetostatics, or static magnetic fields.

Some of the important equations that we will either state or formulate in magnetostatics are given in Table 1. Some of the equations pertaining to electrostatic fields are given in Table 1. The modification of Ampere's law can also be viewed as a consequence of the equation of continuity or conservation of charge.

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