Concepts Of Engineering Physics – Kumari Mamta

The volume integral of the divergence of a vector field over the volume enclosed by surface S is equal to the flux of that vector field taken over that surface S. This is known as- (a) Stokes’ theorem (b) Green’s theorem (c) Gauss’ divergence theorem (d) None of the above 10.

Consider the following two statements: Statement I: Stokes’ theorem links the line integral of a vector field around a closed curve to the surface integral of its curl over the sur- face bounded by that curve. Statement II: The volume integral of the divergence of a vector field over the volume enclosed by surface S is equal to the flux of that vec- tor field taken over that surface S. Which of the following is correct? (a) Statement I (b) Statement II (c) Both Statement I and Statement II (d) Neither statement I nor statement II 11.

If ∇× = 0, then A is (a) solenoidal (b) over damped (c) rotational (d) irrotational Keys to Multiple-Choice Questions d d d b a d C h a p t e r 6 Electric Field and Potential Electric charge is the property associated with matter due to which it pro- duces and experiences electrical and magnetic effects. Charge is a scalar quantity and is of two kinds: negative charge and positive charge.

Like charges repel each other and unlike charges attract each other. The SI unit of charge is the Coulomb symbolized as C. One Coulomb is the charge flowing through the wire in one second if the elec- tric current in it is 1A. Charge on an electron is − × − 1.602 10 and charge on a proton is positive and of the same value. = × = 3 10 esu of charge 1 10 emu of charge coulomb 6.1.1 Properties of Electric Charge i.

Concepts of Engineering Physics This book offers readers an engaging and accessible reading of the Engineering Physics syllabus, as per the Indian National Education Policy 2020 and approved by the All India Council for Technical Education. The book demystifies and sim- plifies the complex concepts of wave optics, lasers, quantum mechanics, vector calculus, electrostatics, magnetostatics, electromagnetic waves, semiconductors, and electronic materials through relatable analogies and applications. It contains more than 225 multiple-choice questions with keys, 150 solved prob- lems, a question bank of unsolved problems, 380 very short answer-type ques- tions, 200 short answer-type questions, and 130 descriptive questions, in line with the Four-Year Undergraduate Programme (FYUGP) examination curriculum.

The book also contains around 100 diagrams and a few tables to aid the understand- ing of readers. A summary section, included at the end of each chapter, serves as a ready reckoner for the concepts in Engineering Physics. This textbook caters to the needs of undergraduate students studying Physics as a major and/or minor paper in the FYUGP of the Indian Universities and colleges. With lucid presentation and insightful explanations, this book is a must-have for aspiring engineers.

Key features: • The book covers the complete Engineering Physics syllabus for the FYUGP. • It demystifies complex concepts through relatable analogies and practical applications. • It includes a rich question bank and practice materials to aid self-assessment and learning. Kumari Mamta obtained her Ph.D. degree from Ranchi University in 2011. Currently, she is an Associate Professor of Physics in the Department of Ap- plied Science and Humanities, Nalanda College of Engineering, Nalanda, India.

She has 21 years of teaching experience in engineering colleges at undergraduate and postgraduate levels, and 18 years of research experience. Her research interest lies in the field of radiating structures using numerical methods, computations, and virtual lab simulations. Dr. Mamta has been an Erasmus Mundus India4EUII Post-Doctoral fellow funded by the European Commission with the Department of Electromagnetic Engineering at Politecnico di Torino, Italy, in 2014. Raj Kumar Singh has obtained a Ph.D.

degree in Physics from Ranchi University, Ranchi. He has 18 years of teaching experience at undergraduate and postgraduate levels. His research interests are in the field of microstrip patch radiating struc- tures for mm wave communications, spintronics, and high-entropy perovskite. Dr. Singh has been an Erasmus Mundus Post-Doctoral fellow at Politecnico di Torino, Italy, funded by the European Commission, in 2013–2014.

He is a fellow of the Institution of Electronics and Telecommunication, India, a Member of IEEE, and a life member of the Indian Science Congress Association, Kolkata, Indian As- sociation of Physics Teachers, Kanpur, and Indian Physics Association, Mumbai.

This is a short excerpt from the opening of “” by Unknown, quoted for review and introduction purposes. All rights belong to the copyright holders.

Book Information

• Unique ID: 2f3ca9099fcff696
• File Extension: .pdf
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• ISBN: 9781041167617, 9781041191834, 9781003710486
• Pages: 512
• Language: English (en)

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