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## Extra study material

2 reviews
by: Katie Hathaway

61

1

4

# Extra study material PHYS 202

Katie Hathaway
USC
GPA 3.9
General Physics II

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Quick review notes for first exam, really condensed concept review from class and answers to practice problems. Great if couldn't go to review session.
COURSE
General Physics II
PROF.
TYPE
Class Notes
PAGES
4
WORDS
KARMA
25 ?

2 reviews
Bretlanne
Kalyn Sjoberg

## Popular in Physics 2

This 4 page Class Notes was uploaded by Katie Hathaway on Sunday September 20, 2015. The Class Notes belongs to PHYS 202 at University of South Carolina taught by in Fall 2015. Since its upload, it has received 61 views. For similar materials see General Physics II in Physics 2 at University of South Carolina.

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## Reviews for Extra study material

-Bretlanne

-Kalyn Sjoberg

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### What is Karma?

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Date Created: 09/20/15
Coulombs Law Fltq1q2r2 The force acts on both point charges with separation distance r The force is attractive for opposite charges and repulsive for same sign K is constant and equals 899 x 109 provided on equation sheet Remember this is a vector magnitude and direction so must break into x and y components Electric Field EFCI0 Electric Flux I E A EAcose E is the electric eld A is area and theta is angle between electric eld and normal force vector of that area Electric ux is the number of electric lines of force passing per unit area of closed surface proportional to strength of charge Guass s law for closed surfaces The total ux is equal to the charge enclosed divided by the permittivity I QEo EA QEolj E qAEO so is constant and equals 885 x 103912 equation sheet Use a quotcharge densityquot to describe the distribution of charge different depending on geometry A charge per length 0 charge per area p charge per volume Examples 1 Charged rod EA 2nrhE I Q o AhEo set them equal l E A2nreo 2 Charged sheet 2EA oA o set equal l E o2eo 3 Two parallel conducting planes I 0 4 Spherical shell I q o 4nr2E l E q4nr220 5 Uniformly charged sphere E qr4rIEoR3 Electrical Potential Potential energy per unit charge Equipotential Surfaces Collection of points with same potential The work done by E as it moves a charge q between two points with potential difference AV W qAV The electric eld is perpendicular to the equipotential surfaces Important notes Coulombs law and Gauss law describe the relationship between electric charge and electric eld so they can be derived from each other The electric eld inside of a conductor equals zero all charges on surface No charge on cavity walls The conductor shields any charge within it from electric eld created outside the conductor The electric eld just outside the surface is perpendicular to the surface at equilibrium

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