Faradays_law_examples - EXAMPLE: emf Induced in a Rotating...

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Unformatted text preview: EXAMPLE: emf Induced in a Rotating Bar X A bar of length l is rotating in a plane perpendicular to magnetic field Ewith angularspeed a). What is the emf induced across the length of the bar? \t/ ‘ qVL waste/166 ”fl‘mf’wf JV/ X X 4]: «30 6mg Ora/v Cogwa d’r “5 00g 78%” gal/role Fdfl 797/91 emF 0V€”éag §am W50 Wé‘ fl 2 / 6 6:.- g‘ (Ba/Po?” 3 8W2 0 C9 0 / g1 ‘ LENZ’S LAW EXAMPLE: (from Prob. 21, page 794) 4 @$ t A conducting loop of mass M, . . resistance R, width w, and length I is dropped into a field B pointing . out of the page. It reaches a terminal velocity before the top ' edge enters the magnetic field. . . Calculate the terminal velocity. 4/4/16 Top @176 f5 0“ Amie 9%,, {f 625 M7 #4 W we F/(JK fl/Vvtjlx A90; ’5 @ Dryer/{Lara Capped/94. >7 F/HXCawIZ m away; :27 [@473 Law-,7? M %%0€%0“N‘W‘L /‘5 ’M if”. W Hop W965“ )4 Cfedgf/p/W') ‘J ' aé/aop‘(x’< ‘ y a} /‘ S B I‘M/WP “‘9” (gig fl 3 “:7 C/flc%w1:g£ @ M/fCrM/WPE fly: //l/DVéED W137; yga/gmfi73lw. /g/: 3.4ng: wig/51‘: 73427;” “C 9/”? C19 //(/§mA/7M/EZ7V5 Cue/zffl/Vr‘ affirm/fl?- Z: z s 37”“ war/gate My / g Q” LENZ’S LAW EXAMPLE: (from Prob. 21, page 794) A conducting loop of mass M, . resistance R, width w, and length I is dropped into a field B pointing . out of the page. It reaches a terminal velocity before the top edge enters the magnetic field. . Calculate the terminal velocity. @ F’O/‘ca 5:14 kayo [flap/1 /0Wg,~&¢%¢0w%). U) A.) F; Ing: 3 / I2 Baal?) (ow LENZ’S LAW EXAMPLE: (from Prob. 22, page 794) A rectangular coil with N turns, resistance R, length l and width w moves at constant speed v into, through, and then out of a region containing a field E pointing into the page/screen. Find the magnitude and direction of the magnetic force on the coil as it (a) enters the field, (b) moves entirely within the field, and (c) leaves the field. :9 0/;(29’5 M15; 7e/{M 72 0a} rm) 1% flag] alt/*me 4749/5 14, 6.6.w' FAA/WW? 44W: 493 : (Bu/Av [lg/:fl/jg :A/gwjgc: , 5‘ -/ é : WK “ CW4 S I z (z ' flan/w ._» “A ._> A t 5 X ao’pgjwwxg 5? #56/ mag E. //‘ area [‘5 £0 £1va ~60” flnféfsfioé . ‘/ B04/vQ/W I??? CW'IQ ‘ LENZ’S LAW EXAMPLE: (from Prob. 22, page 794) A rectangular coil with N turns, resistance R, length I and width w moves at constant speed v into, through, and then out of a region containing afield B pointing into the page/screen. Find the magnitude and direction of the magnetic force on the coil as it (a) enters the field, (b) moves entirely within the field, and (0) leaves the field. ...
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This note was uploaded on 03/08/2012 for the course PHYSICS 1051 taught by Professor Michaelmorrow during the Winter '12 term at Memorial University.

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Faradays_law_examples - EXAMPLE: emf Induced in a Rotating...

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