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ctQng nang ctia elecrron thay cldic. hrrdng vfln tdc cfia electron thay ddi d..[r]
(1)F. 'q{
frt I ! 4^ ,':
,; 4.{r!'
fla ^t i{IufuI "J'Rr\ 15,L,Ahl Z I-iK ,rW YWrr
mqrt phiing khr_rr;g
,, t:6U J: i irung ,i$,u ciAn hinh
i,'rirll;g iltic vrli tl,i:i.r-r,g.stfc
tif Kdt Iu{n iliir: sau d6y Cdirg
r:hrf nh{r cit cr0ng dien
cI+t tr',g
nhrt hinir v0
I ,.' ii.kii0ng
c$ lu'c ti) ti{c cJrJil,g viiri kliLrr},g
n ,Jtl iLti: !i'ticdqrng, ki,u.rs o;., qlritnh r^rc oo'.
c lus ii-Y nxm ir*ng m+t ph;ins klrung L'("i xii iiur'ii-ig liini kliung'.bi giiy::
Ll' irjc nlm trerng m,qrt ph*ng khung cri xu hu6ng liinr
tif trrfclng
I
khung bi
)'
il l'ri
f'\"- ^f I t1
L iiu 2: i(irLrrlg d6y clfin h)nh chir r:hiit tirrlrig r.llii i2 nirrf 5)nlj r,[' I,Lrt tr-f ]cl, tir
cri xi.t huillng iiinr cho khung
tr cf; i,r i:arlg
ct'-; clt'rng tli0n It d+t'troitg cir *g nrit p5,i rrg
tt'ut-rng cfia c,dta dilng cli0, I2titc clr.r,g vir,
Ir
tldng hutlng cfra ltJc: Lrl-t"en-xtI tlic gui:g: lf:rr irirr
t; t.)
vtlti dirng tliCrr
khungtliiy sC
b cJrray c;ilanh truc dii xrtirg
(r iii:i-r iifh riang h0i: triti
(i ti n i: ti €in l;ii ng b0n pir# i
il;iu 3: 'l'r'L,ng i:lic i:ir:h,,,G.tau,jf;y, irifrii r:i,;
c,hi
mang tliqn 6m ci:uy({n d6ng rrong Lii r*f.}rfg
cldu
at.r c G ', e ii b.
i
,ri
I
* fr'-,r-F i ,, , )' c
I
e! + e e
I I
*f e o r
"t -+ $ I t -LI -i- -t-_f ,/++ I
1, 'r ti-I
I
l.!4**-f-ts
-i.-+ -f
-+- r\
t t
++
-i t-{-+
!*L '
.' I
I I
$roie+
clii, "i: h4$t elect.on bay vio vtr,g
khong gian cti rr) trLrt)ng rt6u c(r ciim fr.,g r.it B
= (i.2.i r,r,ii r,,in
ff :liJ'LI v = 200 knr/s 'u.ng * ,'oiiI;; ;;;.i tu L.-ren-x11 riic crr,rng
'ii e rec,\r* c.
! ri 3.2.10 - ', N
c {o,4.ig-,oN ' 3'2'10-'-t N
{lti* 5: ir'4fli r:lcct;'on irav viri viing kii.ng
*,r, Jl;ki;llJ,[r.o ciirn (rr:g tir rJ
= I{)*4T.r,r.ri
'iin ttt'c ban da*rr " = j200 krn/svu6,g g6c vili cdr, rfng tty Hh<)-i r.rtong c.iia c:i*crr.n ta g.,1.,i0- .,r
kg bzin kfnh qu! cla' cria ele:cirr:' tro*g tr? trt/ilng li
a 16 cnr b, 2.(),4 cm
t8.2., d ?7,.] r:ni
L'iiir (r: i/ihung d6-1r
65n ltinh
'udt:g canh a = 2{) (c:rn) gdnr *:ri I0 ,.,irng diiy,
<.rt)ng ili$n cha i, tr r1g nrdi vdnil crnl' a'i cu*ng dQ I = , ioiyrn1,,* ioil.,, ;;,;:.,'il;;,:,;:'",
ct-, ciirn riir;: rir rr = ().1
(2)
.p*
- \e-{
(T), mat phtng khgng ddy chfa c6c dudng ctim rlng til M0rnen lfc tr] tfc dqng IOn krhung riiiy
c(r d0 lrln Ii
a (l.lrn) c 0,16 (Nm)
b.0,01(r (Nm) cl 1,6 (Nm) S :
Ciig 7: MQt khung clf,y phlng nhm tU trLtJng ddu, miit phSng khung d0y chrfa c6c duJng
s(rc tir Khi giiirn crJirng c1Q clt\ng c'tiQn .cIi 2 ldn vi tirrrg cdm rfng dr I€n lAn thl m6rnen lr-fc til tdc dung lCn lihttng clfly sC (
a kh(;ng ctdi c teing 4ldn
b tirng ldn cl gif,m 2ldn
Cf;Lr tj: MQr khung clf,y crlng hinh chtr'irh{t cti kich thrldc 2 (cm) x 3 (cm)ddt tir trrrdng
ddu Khung c6 200 vr)ng df;y Khi cho clbng diQn cti crrirng rXQ 0,2 (A) di vdo khung thi mOmen
pgfru lLrc t6c c1-rng vio khung cri gid tri l(in nht't lir 24.t0-+1Nm) Cfrm irng'trY cria tH trr-k)ng cti
clO l(rn lI :
a 0,05 (T) c.0,40 (T)
CAu 9: ]v{6t electron bay vho virng khting gian cci til tnldng ddu c6 cfrm rlng t* B = 0,0I T vtli
v{n ttic han rldu r, = 2000 km/s Lrlc Lo-ren-xtl tdc dUng vho electron c6 rIQ 16n ii 1,6.10- rs n*
G(rc hdp btii vectd v0n tdc ct'ra electron vi cdm rlng til ll
* iI 6d)- b, 3(/' c: 9()() d.45('
C0u l0: D0 til khuynh li:
a g6c hrtp bcSi kim nam ch6m cfra la bin tr} khuynh vi m5t phing nlrn ngang
h g(rc hr)p b<3i kirn nam ch6m cira la hdn tr) khuynh vi m[t phztng thfrng clfrng
c gtic htJp bili kim nam chf,nr ciia la birn trY khuynh vi kinh tuydn dia lf
cl- gtic hrlp hili kim narm chAm ctla la bin tir khuynlr vi m{t phfrng xich c14o ct'ra triri clAt
CliLr I l: Chon r:iiu phrit bidu khOng dring
a C(: <10 tir thi6n li clo cdc crlc tff cfra trtii dit kir6ng tring v6i cdc dia ctfc
b D0 til thiOn vi d0 til khuynh phrl thuQc vi tri clia ly
c Bi{c ctic cri ctQ til khuynh dtfclng, nam ctlc c:6 dQ tt khuynh fim
d Bric ctJc c6 d0 tir khuynh ffm, nam ctlc c(r d0 til khuynh cltrrlng
Ceu l2: DO tir ihi6n II
a g(rc lQch giila kinh tuyin til vi m{t phflng n}rm ngang
b gtic lQch gitra kinh tuydn til v) m[t phlng xich c14o ctia trdi <I0-t
(3)- Iti' I ,t
i
Ci.u i3: Phdi friiu nir; sali rial la dring l
a' D0 tr) khui'nh dfirns khi c'Jc hXc cria kim nanr chdm cria la hln
niim tirrdi niii{ phinu ngang' d0 tilkhuynh'€m khi cttc bdc tfru lri* nam chdm cria ia
bin nlm phfa tr6n mdr phing
n.gllng S ' ,"
h D0 tf I'hu5'p]1 ciilong crJc b5c ctia kini nam chAm crla la bln nlm [rCn niiL phing
n-cang d0 tir'khui'nh 6m khi c{e hdc cria }rim nam chim c'ria Ia b}n n}m phia dutli nrir phing
ngang ,
; -c'
E
u D0 tu'kiru,t'nh uu'ong kiri crlc Udc cua kim nam chAm cfia Ia bin lQch vd hrlrlng trIc, d0 tir khul'nh am cryc b{c cria kim nam ch6rn cria Ia hin n}m vd hrrrlng nam.
d' D0 tU khul'nh drltlng cu'c b5c cfia kim nam chAm cria Ia bin l6ch r,6 huclng narn .10
tt khul'nh Am crJe b{c cria kim nam ch$m cria la bAn n}m r.d hudng d6ng CAu 14: Luc Lo-ren-xd c6 phrJctng
a vu6ng gtic V6i r,6ctci vQn tdc cfia hgi -ung diQn vA vu6ng g6c vdi c6m r?ng r& c-ria.trT tnldng
b vu6ng g(rc vdi vdctcl vln tric cria h4t mang diQn vi trtng vtli phrlong cria cirm rfng tir
:,' c trDng rrdi r'6ctt) r,[n tdc ctia h4t mirng rliQn rr] r,u6ng g6c vdi cdm fng til ciia tif t1-fifng
d tring vdi rr6ctd v{n tdc ctia hat mang diQn vA song sons vrli c6m rfng tU cria ril trur}ng
CAu I5: Chidu cria lrrc Lo-ren-xcr phq thuQc vAo a chidu chuydn dQng cria hqt mang diQn
u b chidu ctia cluitng sffc: tD' c d0 ltln diqn tich cfra h4t
d a veb ,
Ciiu I6: Do c6 v{n tdc ban ddu electron bay v}o trong mQt tr} tnrt)ng ddu theo htrrlng s()ng sor.rg
vdi dudng srtc tfi thi
a dO ldn v{n tdc cria electron thay ddi b ctQng nang ctia elecrron thay cldi
c hrrdng vfln tdc cfia electron thay ddi d vecto van tdc cria electron tt
Ong odi
iC:'.17:Y$t i6n !1r vao o:"* mQt til trudng ddu theo,htrdng vu6ng gdc vdi dudng srtc til thi
jldc til sE lim cho i6n chuydn dQng
theo qu! dao li
a mQt drrdng rh8ng b m$t dudng paraboi
c mQt drrdng trdn d mQt drrdng Bhric
Cdu 18: MQt i6n bay vi.o mQt tr} tnrdng ddu theo hrrdng trqp"vOi clrrdng srlc til
mQt gtic 450
thi hrc tt s€ lim cho i6n ghuydn dQng rheo quf d4o li
a mQr rludng rh8ng I) mQt drrdng parabol
c mQt drrdng trdn d mOt dudng khric
Cdu 19: MOt i6n bay vio trong mQt tttrrdng ddu v6i vdn tdc v theo huting yu6ng
gcic vdi
drrdng sfc til, lrrc til lim cho i6n chuydn dQng theo quf dao trdn bdn kinh n Ndu Uan ddu n(r
bayviotiltrrrdngvdiv{nt6c2vthibr{nkinhqu!d4o1d
R
iy d6n c6 ddng di€E d?t rrong tr} fnrdng kh6ng chiu t6c j
mang di0n
:
(4)a rneit ph&ng
b m+t ptrfrng c phdp tuydn
n
d m{t phfng
:
khung vudng gdc vcli dUrlng srlc ttf khung song song vdi dudng sffc tit'
criakhung.vu6ngg6Cy6idud1$'f*$r.-;
khung hqrp vdi dudng sffc tr} mOt s6 c n vdi < a <900'
q
irlrl
\
u
HQ VA TEN
LoP 1t A*