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## Intro Physics II

by: Kylie Bartoletti DVM

7

0

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# Intro Physics II PHYS 2212

Kylie Bartoletti DVM

GPA 3.67

Staff

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## Popular in Physics 2

This 0 page Class Notes was uploaded by Kylie Bartoletti DVM on Monday November 2, 2015. The Class Notes belongs to PHYS 2212 at Georgia Institute of Technology - Main Campus taught by Staff in Fall. Since its upload, it has received 7 views. For similar materials see /class/234295/phys-2212-georgia-institute-of-technology-main-campus in Physics 2 at Georgia Institute of Technology - Main Campus.

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Date Created: 11/02/15
PHYS 2212 Solution Recitation 06 Week of September 29 Example The electric field inside a uniformly charged insulating sphere of radius R and total charge Q is a Q7 E K r at a distance 7 from the center Outside the sphere the field is at a distance 7 from the center What is the electric potential at a distance 7 lt R with respect to zero at in nity The electric potential difference is related to the electric field f 5f AVVf7Vi7Ed i Escos lds i s In this case 31 00 and 8f 7 One must be very careful about 6 Positive ds points away from the center of the sphere even though we are integrating toward the center of the sphere The direction of the integration is taken care of by the limits If Q is positive then E and 1 are parallel and cos l 1 If Q is negative then the sign of Q will yield the correct sign for the potential difference 7 R 39r R 39r AV7EsdsiEsdsiEsdsiKgdsiKds s R3 00 00 R 00 R R l s lR l 52T 7 72 7 7 7 7 7 7 KQ s dsR3sds KQH1OOR32R 00 R 2lt1gtJ iKQ r2 h d Note that this result has units of electric potential and is positive when Q is positive as expected PHYS 2212 Recitation 12 Example A rectangular loop with sides a and 2a is placed in a uniform magnetic eld as illustrated The magnetic eld points in the z direction and is constant The loop rotates about an axle Solution Week of April 6 With angular speed w A circuit is attached to the loop and an 1 w induced emf in the loop causes a current through the resistor J l a If the loop begins rotating at time t 0 with it area vector r parallel with the eld What is the emf in the loop as a function f 139 of time397 b What is the current through the resistor as a function of time397 AM P EL WU16441 flux 3 UL l 4 lg l v J l 4 Q r5 l Lz F L in mm aimLL21 Mu foo0 Cfm fo w E j QGRE CUng 0 I a I QQZE Dzosfw CJIL 7 2 N 7 Vquot 74 K PHYS 2212 Recitation 12 Problem A rectangular loop With sides 5 and w moves With a velocity 17 away from a long Wire that carries a current I If the resistance of the loop is R7 nd the ernf in the loop and the current through the resistor at the instant the near side of the loop is a distance r from the Wire Solution Week of April 6 1 wlm g39s fw UL mj m eJ rum4 fry JnL 39 f n n l quot r J39 5 1 w T 9 77 X ne 7 Y ite LC I39LMF39E WL lux k r l quot l quot7 T I A quot39 I r 59 9 y I I i l Cr Llr quotV t J 14 7 F 4quotl I T d t l 39 r Ur i r f 5 1 u l vi MHJMf Wquot w 0 x W Iivmdno 2 41 Wv 33914 aHjl 177 V 0 2 x H f Q R K t 27 rrw jMrJ a Me umcag r 9va 9M 0 I 1 1L L 1quot 1 f 13 f 2n fL PHYS 2212 Solution Recitation 11 Week of November 10 Example A triangular loop With total resistance R7 height h and base length I lies in the a 3 plane in the presence of a uniform magnetic eld B BO 03 g The loop is then rotated about the y axis With angular velocity w Calculate the induced emf and current as a function of time What is the initial direction of the current ow I w 3 From FmrmAbv il lowJ W Kym 6 at X wuf a 35 Ts u W aj39wl C C39lvx OWE N i huVVV qur quot 9 quotI EU VIT Fo WW 0907V iiiriwld39lefk Vt Tko flux COW l C C lcu KJTL as E G 1 V For 039 LoASlakl 3 4712L X w n we mm C dMl uM E we ll M56 L T w al WliW v V A 15 gem iwld h H L 604 an Aeramgs 01 ar1 i oiok fijy i L if E 4 Ax A H i A A M A tngA9X4GDSQE X film Laue waseg AIML Jrn MU o hkl m 7 WE ism 1M teamway 3 Lambda coma E tutu7 50105 W EM EM 39 A Lwoast MSTWLUJ39L39JB Go 2m vsant asy 7 km 1 391 Ha Xe vhh TL hrimru h n ahauy ram 5 rm quot VOY Low HRH H LUSCF 9 ha ferfengin m in VI Ag ELW S L iz ux hraujl 75 quLmsrnfju Vquot THE rm out t a dockwrgo Cuffed a X Hom TR 3435 Mob quotmm 3154 car rrqi Ina ax quot1 bfrl hl 31ch Apex 23 Ayn Mmmgug HM Ck rdwkww Okfllnh How 391 I I 4 v 3 mania a 3 u m Hg 2 Nuhog

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