ĐỀ TS CHUYÊN LÝ HÀ NỘI AMSETDAM 1999

cEul: (2 Ctro nrqch . U=36V . R1=40 R2=6Q IRT,UI.IG CIIU ri nrr nirft"srlln vAo r"oT to VAt'l Al'l & II,ANOI-MSITRDAI{ (1999-2000) . Mdn thi : . NgAy thi : . r'hdj ejan : vdt tt I B-06- 1 999 150 phirt lim Utli lt + u (tleilt) rli$n nllr kh6ne cldi ; R3=90 i ; R5=l2Q ; hinh v6, bi€t : c6c Ra*0 kdlchl I irn sd chl a\ ,54 hAy tim li,l c0a c6c anr|q 16 dr [,{ i e', .,'t,i, It.,l'i.,1;"i"^ilsaiudi;,1ffii,1ffi'ful"il? :;s,, M hg.p clce trorr buy vAo t,i trtrcrne vd qui C+n iri udn*colrg thco currg Al3. ' o ,.,1n),.Xac tIlnlr electron bay vAo tri trudrrg tr.t ulelr A trai'B. (ii6i thich. e CAU+: ( I rti6iu) IItri nr6y biry ctrieh Oau a,n song song vrii nlrau. Ti A, tlreo.drtdng dErr vu6ng gdc a) Xdc' d jrrlr klxrllr,e ",ifh o b) Nlyirr xt,t vd Ann nrdng- r'4t tlqrr. QAU-5: (2<lid'nr) bay ngdec 9hi6r1 nhau cring vdn t6c 200km,/h vi ngt -s[ng m6y bdn ra d€u ddn 900vi€n clan/phft Ygt duonF bay va r.rfng B. .t,4 iria 2.v€.t ^d4n^kd nhau trdn tirdn nr6y bay R. cda sttc cdn cila klrtSng t<hi Adh khodng cdch c6c nlRn t't$,t, rn6y siiy nh6 c6 c$u t4o nhrl hinh v6, trong tl6 ; . t, ta ngu0n c0 dinh = lOV , r=10 . R toA nhigt Ad sdv. a) nifjt c(ing^,sudt Od sAv l;r 9w, h6l, *6" Utnn cuir lra.\' sily lrAy. b) I'lft lr,,rrr djrrlr ndng c6ng su0t toi rrhi€t l€n Iray birrlr .lu4n v€'dV dinh nAy vd g6p:i cho C4u-6: (2ttiein) gu6 trinlr rrgrrrrg .tq c0a mgt luqrng htri nur6c , ou(]g ttr€ lrigrr trdirg tt6' thi b6n, trone d6 . A ta tlrcri cli6in tran cl6'u vA o lA cuCfi-cring. ll6y xilc,dinlr.kh6i lwng ctla trlng lo4i : 1l nrt3c rlii'r, rru(/c: , lrcJi'r,Io" iqi D. hiQu diQn th€! thUc td urnn 26w trdirg cdclr ilray Cdi n b4n vi' gidi ph6p. 86 qua urdt nr6t^,itrigi ua-"no-uiEi . Q1:2,?6. l0'J ; Q2=3,434.10"J . Nu6c cri C=.1200 {/kcqg |=1,1.t0u J/kedO .t '.tq u t€n ltgc sinh danlt : Ho. vA sd bAo a) K m&,ampe b) E6ng K, t CSu2: (2.didlr) 3* 3"lldl,^|iln.?,1 ,i], c{t chu.g tru? lag.cho I cr*irn s6rrg sons song ill ili{ X: fy,T?.11i,.::1".:,i"^ti?;;;i,* "yr ;:f i,,u1,,g"r,,,i,"30'iilF'xily ra. o) yll :1, l*,,ki,llr froi.,tv, oz lri phfrr r.i, *,.ir;';3"il"6,;;=;6;r,. I d A'B'=AIt/3. cdul: (l,tii1u) YQt ydt Au (tar rrtndc or vu6ng g6c.viii tru" Inii,t, qua-z-kinh c6 dnh ld A'B'=All/1. Htiy vd hirrlr "ri-tI d6 t inh iie" '",r""r1r t,.*n. r1,4',, L j-r, ( I tlitiil) tinh ti€u cU ctlC turrg thd'u kinlr. (, u . CIIU ri nrr nirft"srlln vAo r"oT to VAt'l Al'l & II,ANOI-MSITRDAI{ (1999- 2000) . Mdn thi : . NgAy thi : . r'hdj ejan : vdt tt I B-06- 1 999 150 phirt. r.rfng B. .t,4 iria 2.v€.t ^d4n^kd nhau trdn tirdn nr6y bay R. cda sttc cdn cila klrtSng t<hi Adh khodng cdch c6c nlRn t't$,t, rn6y siiy nh6 c6 c$u t4o nhrl hinh