Guide Particulars :
Language English
Pages 500
Format PDF
Dimension 14.6 MB

 

Basic Electrical Engineering For B.E/B.Tech and Other Engineering Examinations


 

Basic Electrical Engineering Revised Version For B.E/B.Tech and Other Engineering Examinations by V.Okay. Mehta and Rohit Mehta | PDF Free Download.

Preface to Basic Electrical Engineering PDF


The final response to the Fifth Version of the e book was very encouraging.

Authors really feel that their work has been amply rewarded and want to specific their deep sense of gratitude to the big variety of readers who’ve used it

And specifically to these of them who’ve despatched useful recommendations now and again for the development of the e book.

The recognition of the e book is judged from the truth that authors incessantly obtain suggestions from many quarters together with lecturers, college students and serving engineers.

This suggestions helps the authors to make the e book up-to-date. Within the current version, many new subjects/numericals/illustrations have been added to make the e book extra helpful.

Authors lay no declare to the unique analysis in getting ready the e book. Liberal use of supplies accessible within the works of eminent authors has been made.

What they might declare, in all modesty, is that they’ve tried to style the huge quantity of fabric accessible from major and secondary sources into coherent physique of description and evaluation.

The authors want to thank their colleagues and associates who’ve contributed many helpful recommendations concerning the scope and content material sequence of the e book.

Authors are additionally indebted to S. Chand & Firm Ltd., New Delhi for bringing out this revised version in a short while and pricing the e book reasonably inspite of heavy price of paper and printing.

Errors might need crept in regardless of utmost care to keep away from them. Authors shall be grateful if these are identified together with different recommendations for the development of the e book.

All people is acquainted with the features that electrical energy can carry out. It may be used for lighting, heating, traction and numerous different functions.

The query at all times arises, “What’s electrical energy” ? A number of theories about electrical energy have been developed by means of experiments and by statement of its behaviour.

The one concept that has survived through the years to clarify the character of electrical energy is the Fashionable Electron concept of matter.

This concept has been the results of analysis work carried out by scientists like Sir William Crooks, J.J. Thomson, Robert A. Millikan, Sir Earnest Rutherford and Neils Bohr.

On this chapter, we will cope with some primary ideas regarding electrical energy.

An electron transferring across the nucleus possesses two forms of energies viz. kinetic power as a result of its movement and potential power as a result of cost on the nucleus.

The whole power of the electron is the sum of those two energies. The power of an electron will increase as its distance from the nucleus will increase.

Thus, an electron within the second orbit possesses extra power than the electron within the first orbit ; electron within the third orbit has greater power than within the second orbit.

It’s clear that electrons within the final orbit possess very excessive power as in comparison with the electrons within the interior orbits.

These final orbit electrons play an essential position in figuring out the bodily, chemical and electrical properties of a fabric.

The outermost orbit can have a most of 8 electrons i.e. the utmost variety of valence electrons might be 8.

The valence electrons decide the bodily and chemical properties of a fabric.

These electrons decide whether or not or not the fabric is chemically lively; metallic or non-metal or, a gasoline or strong. These electrons additionally decide {the electrical} properties of a fabric.

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