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# Calculus Based Physics II PHYS 2120

GPA 3.57

Timothy Farris

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COURSE
PROF.
Timothy Farris
TYPE
Class Notes
PAGES
10
WORDS
KARMA
25 ?

## Popular in Physics 2

This 10 page Class Notes was uploaded by Mrs. Charity Bradtke on Wednesday October 28, 2015. The Class Notes belongs to PHYS 2120 at Volunteer State Community College taught by Timothy Farris in Fall. Since its upload, it has received 13 views. For similar materials see /class/230703/phys-2120-volunteer-state-community-college in Physics 2 at Volunteer State Community College.

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Date Created: 10/28/15
Electric Field of a Continuous Charge Distribution Example A E Le t Find the electric field a long wire holding a total charge of LIN 9237 If7 k 1 1 at L J1 r 2 4 b it39d9 175 r ueaE E f E m1 15 ITEM52 7 EkampEkampEuu8 tugging E L R 1 ng Le g 2x 1 anyfgf lw LN Wde Exzma r ial ndi TEA ZXL t A L 70 1 U39awquot I 11 236 Electric Field Lines Lines are tangent to E at every point and tangent toF The of lines per unit area is proportional the strength ofE Lines will start on charges and end on charges or startend at infinity their direction is in the direction of E at any point Lines are perpendicular to the surface of conductors Lines can39t cross one another nnnnnnnnnnnnnnnnnn le 104 Inc You can figure out a field line by thinking of putting a small test charge in the field and seeing the direction of the force on it D 16 llt r L3r39 6F 47 9440545 2004 Thomson Emokslcols 2004 Thomson BrooksCola Title Feb13 903 AM 5 of 10 237 Motion of Charged Particles in a UniformE Field f zit I Z s E 439 In With a charge in a constant E field its acceleration is also constantgt projectile motion Ch 24 Gauss39 Law 241 Electric Flux Define the electric flux 5 as a measure of the of electric field lines penetrating a surface 3 A For a mA F g39zlp 4 quot 9 a P 5 E EA A39 3 FAQ25 libel 2 M c f fA f tr w A 5 Any 3 5 456 I 45f 5 gt 4 z 53954 m nnnnnnn 00000000 9 E Su Ju Note the flux zero ifE O or if E is perpendicular to A the flux gt O ifE is quotout ofquot the surface the flux lt O ifE is quotintoquot the surface Example Find the total flux from a point charge 9 r 0W S U c 61 2 739 524 5 849 a 4 t 4141 L 2 ma Note that the flux is constant depending only on q Whether the flux is or depends on the sign of q and goes with the direction of the field lines This type of surfacea closed surface is often called a Gaussian surfacequot HW Ch 23 pp 732734 P 26 27ab 39 4o 47 Ch 24p755 P34

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