Exam3Solutions

# Exam3Solutions - D O N OTT URN HIS AGEIIIII T P ,z E- Name:...

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DO NOT TURN THIS PAGEIIIII ,z E- t Name: K EV l tqt t tv, Physics 48 Winter 201 1 EXAM 3 Partia! qeCjt w!il Pg qiven. so. do w4at vou cah. and show ail vour work in g.gmnlgt?letail with aperopriate units. NO C WOnX ts sHowN!

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1. A non-uniform magnetic field points out of the page as shown below in the figure. The increases at a constant rate of 2.0 mT as you move to the right. A square wire loop of 15 cm on a side lies on a plane perpendicular to field, and a 2.5 A current circles loop the counter-clockwise direction. Calculate the magnitude and direction of the net magnetic force on loop. (10 pts) o o _> o-93 --> s )- Fg= r!- x9 dFu.IJA2d 4---- A.oxnT 4r-m => \$= bo{-&-f 6us Fn.+ = Fo+ - fua o [)o o \ a\Lh^.{n€\$.J \iu. \- \iJ ( c**o-\ ,"J) _- (^ \.,\ 'n* - = rL (6* rrs\) - r '6' Fn.+: (.(L5 XuJ< P o o o z l. oF o
2. The figure below shows a non-uniform magnetic field that varies along the y-axis. At the top and bottom of the rectangular loop shown the field strengths are 31.0 f inO f .O f respectively. (10 pts) a) Calculate the amount of current that flows through the area bounded by loop.

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## This note was uploaded on 09/02/2011 for the course PHYS 4B taught by Professor Luna during the Spring '11 term at DeAnza College.

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Exam3Solutions - D O N OTT URN HIS AGEIIIII T P ,z E- Name:...

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