PHYS 202: Study Guide for Section II

General Advice

A. Review the key terms, principles, and concepts in your notes..

B. Review the summary of equations at the end of each chapter.

C. Review sample problems done in the book and you notes 

D.  Review homework that was assigned on eGrade.

E. Be able to state basic principles in words and mathematically.

F. Make sure you have a clear understanding of basic concepts. Do not waste your time memorizing stuff you do not understand.

Ch. 18 : Electrostatics I: Electric charge (Q), Electric Forces (F), Electric Fields (E) and Gauss' Law

bullet . Key Terms and concepts:     + and - charges, quarks, charging by contact, charging by induction, electric force, electric field, conservation of charge, lightening, dipole, conductors, insulators, coulomb, electronic charge, electric flux, conventional direction of electric current.
bullet Be able to compare the electrical attraction and the gravitational attraction between a proton and an electron in an atom when they are are a distance r apart. i.e Calculate ke2 /Gmpme
bullet Be able to explain when an object is said to a +charge and - charge using a model of the atom.
bullet   Be able to calculate the net force and electric field due to a variety of charge configurations such as point charges , ring of charge, line charge  Most  of these involve using Coulomb's law and integral calculus. Study the sample problems in the book those in your notes and then do the HW problems.
bullet   Be able to calculate the electric field due to a d dipole  (Study the derivation and  the examples done on the book as well as in class. )
bullet Be able to calculate the speed of an electron in a hydrogen atom.
bullet Accomplishments or major contributions related to electrostatics by:Charles DuFay, http://www.aip.org/history/gap/Franklin/Franklin.html , Charles Coulomb, J. J. Thomson, Robert MillikanYou may look up theses names  in the Internet as needed.
bullet Electrostatics Hall of Fame

 

bullet

Gauss' Law

Hall of Fame
bullet Be able to understand what an electric flux is and how it is calculated
bullet Look up Gauss' in the Internet and list some of his accomplishments from early childhood. Frederick Gauss.
bullet Be able to calculate electric fields due to charged lines, plains, spheres, cylinders, etc. using Gauss' and also by direct integration using Coulomb's law..
bullet Make sure that you can reproduce the derivations of equations: in section 18.9. All of these derivations are simple if you understand Gauss' Law.

Ch. 19: Electric Potential
bullet Be able to define electric potential (V) in term of E, Electric potential energy (U), Voltage or electric potential (V), potential difference (V)
bullet Be able to calculate the electric potential [V(r)] due to :a point charge, a long uniformly charge wire, a charged hollow sphere (inside and outside), a uniformly charged sphere (inside and outside), a uniformly charge ring , a uniformly charged disk , electric dipole etc. See all the problem samples in this chapter.
bullet Be able to calculate the electric field and the voltage across two oppositely charge large plates.
bullet Be able to calculate the speed of a charged particle accelerated by a voltage using the conservation of energy. Using eV and /or Joules as unit s of energy.
bullet Be able to describe the purposes of the J. J. Thomson (1889) and Robert Millikan (1913) experiments. Search the Internet if necessary.
bullet Be able to obtain expressions for E by differentiating V .

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