a.tir phei sang trfti c.[r]
(1).Y H\, \
\
DE KIEM TRA 11 BAN TUNNTTU *rq
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DA Trcz
cdu 1: Hai ddng tliQn thqrcdii song song, cirng chi6u, ddng diOn Ir dugc gitr c6
dinh, 12 c6 tho dich chuy€n, nei-2-ddng eign co ctri€u nhu hinh vE thi:
a 12 dimg y6n b 12 chuyEn ffi.lg song song phuong ban d6u
c 12 dlch chuy6n hudng l0n d Iz dich ctruy6n truong *u6ng
Cdu2: MQt khungdi'y hinh cht nhat ABCDc6 kfch thudc 15cm x 20cm, ddng cliQn ch4y qua khung c6 cudngdQ 2A:
$t^Fol9 tir truhng d6u c6 cim rlmg tir 0,5mT cho c6m ung tu hgp v6i"iAt pta"g".* kl'rung mQt g6c 60" Momen ngau lgc tt tric dpng l6n khung c6 dQ lon:
a M:1,5.10-2Nm b tvt:z,6.loaNm - c.xi:z,a.i0-5Nm d M:I,5.10-sNm
C6u 3: +' Lgc Lorentz t6c dr;ng l6n mQt diQn tich chuyiSn dQng voi vfn t6c Ttrong tu truong <I€u B'c6 itSc
di6m:
Ir
lz
a lu6n ti6p tuy6n v6i quy dao
c chi hudng vlro tdm khi q>0
a.500 vdng
b lu6n hudng vA tdm quy dAo
d chua the tet luan vi cdn phu thuQc vdo B
c 100 vdng
C6u 4: trl0t.Ong ddy c6 chi6u dii 100cm, cudrng AQ ddps diQn qua mdi vdng ddy ln 4A, cirmrlmg fir b€n ldng 6ng ddy ln 2,5t2.10'3 f SO vdng d6y cria 6,rig day li:
b.250 vdng
c6u 5: Hai ddng diQn theng ddi duqc rtpt kh6ng dugc sfp x6p nhu hinh vE tpo ry c6c mi6n A, B, c, D, miAn md J.*,rng tr) hai ddng &ipn gay
ra ngugc chi6u nhau:
a MiAn A vi miAn B b miAn C vd D
c Mi6n A vd.C d Mi6n B vd C
Cdu 6: MQt ddng diengan-g96-9uong dO 5A kh6ng Cem ring tir dong ctiQn g6y rutqiM c6 dO lon 2.l}'s T Di€m M c6ch d6y:
c 5cm
(2);
CduT:Ddng cli$n *rlng dii c6 cu&ng AO i A+t trone tu tru&ng d6u c6 c6m img tir B cho ddng diQn
vu6ng goc vdi tir trulng-thi ddng ttieri chiu t6c dgng ctia lgc tu F Ntiu t[ng 6rong dQ ddng dienletr Z
mn, AO tOn lgc tt thay t16i thi c6m ring tu ctra tt tnrdmg s€:
a t6ng zlin b giem Zldn c Teng Hn d Khdng d6i
Cdu 8: MQt doil day d6n dii 5 cm c6 ddng diQn 0,75 A ch4y qua.clat tu trulng c6 cim ring tir 0,87
thi ddng diQn chiu tbc dgng cria'lgc tU 25,98 mN, g6c hgp bdi chiOu ddng diQn vi tir trulng ld:
a o,5o - b.3oo c.6oo d.goo
Cdu 9: MQt ddng di€n thene mang ddng ctign I d{t tu trudng Xoay ddng diQn cho lgc tir t6c dung l6n ddng diQn li lon nh6t Khi d6 g6c gita ddng diQn vi c6.m rlmg tir li:
a.fi b n/2 c rtl3 d n/4
Cdu 10: Tucrng tfuc gifiadiQn tich dtmg y€n vd dien tfch chuyOn dQng li: a Tuong tdc tu b Tucrng t6c dien
c Vta tuong t6c ttr vi tuong t6c dien d Kh6ng tuong tdc vdi
Cdu 1 : MQt electron bay vio t.u trudng dAu e6 cAm irng tir 10-o T vdi vQn ttic v: 3,2.106 m/s theo
phuong vu6ng g6c vdi dulng srlc tir BAn kinh qu! tl4o cria electron lh:
1/
a Io uln t'tnFrD Lo-).L Cm c.2A cm d.25 cm
Cdu ll: G6c lQch gita kinh tuyiin tt vi kinh tuy6n dia ly cria trdi d6t drrgc ggi li:
a EQ fu khuynh b D9 tu thi6n c G6c tu khuynh ' d DO tt tfram C6u 13: Ph6t bi6u ndo sau ddy khOng dfing:
a.Qua UAt tcy di6m ndo tir trudng dAu c6 th6 vC dugc mQt vd chi mQt dulng sirc tir b.Euong srlrc tir nam chdm th6ng t4o rald nhtng dudng th5rrg
c.Eudng srlc tu h nhfrng duitng cong kin
d C6c dudrng srlc tu cta'nam ch6m di tir cuc b6c, di vio cuc nam
Cdu 14: N6u cubng dQ ddng diQn ddy trdn fing2tdn vd duong kfnh ddy tdngzmn thi cim img tu
t?i tem vdng ddy
a khdng tl6i b tEng zliin c t[ng 4 mn
C6u 15: Thanh kim lopi MN dei 5cm c6 th6i tuqng m:10g, c6 ddng ctiQn
2A-ch4y qua, il{t trog tir trudng d6u c6 duirng srtc tir vu6ng g6c vdi ddng diQn, l6y g:10m/s2 Kf,ri tUr cdnqdAy: 0N, hu6ng vd d0 lcvn cria cim img tu li:
a Hu&ng xu6ng, 8:10-2 T ;: b hu6ng ra, B:17 c hudng vio trong, B:1T d hudng l€n, 8:10-2 T
d giitm}ldn
CAu t6: MQt ddy aan thang dii c6 ddng diQn chpy qu4 d{t til trudmg c6
chiu lyc tir c6 chi6u ttr tr6i sang ph6i, chi€u ddng dipn truhng hqp tr€n:
b tir duoi l6n tr€n
chi6u ttr ngoai thi d tir phei sang trii
(3)cdu 17: MQt t1o.4n devdan AB dei uT:,qddng diQn I :5A
9h4y qua d{t lolglorg vdi c6c dudng sric tu
cta tir trulng ddu c6 cim rmg tir o,sr N6u tarig culng d0 ddne ae, rer-h,+iia;fi i;;i$i; dpng t6n
ddng diQn:
4.a,1 5N b.0,3N
c kh6ng dt dfi liQu d ONI
Cdu'18: Hai ddng rliQn th6ng aai bO ctng cudng d0 Ir : 12 , c6chnhaum6t
H"-tg l,,.?lr-Ts ru hai dong diQn g6v rui4irli6m mcacrr aa, rr"i-aore
diQn c6 chi€u nhu hinh v6, chidu cta ddng dign Ir vd 12li:
a.Ilvd 12 cirng hucmg ra b Ilvi 12 cirng hunng vdo
,r,G -c Il hudng vao va.12 hunng ra d Il hudrng vi.12 hucnrg vdo
cdu 19: MQt electro:^buy.u.1o ugrrg c6 c6 diQn trucrng rl6u vi hr trulng d6u md kh6ng
bi iech phuong ban dAu, chi6u cduvecto cim img tola,
a.Huong vio b hucmg ra
I I
-l- Ar
M vl2
l$l=
TI:
c hudng l6n d hu6ng xudng
Cdu 20: Chgn cdu dring:
a.Tir trufng ln dang vft ch6t t6n tpi xung q,anh diQn tfch dring y6n
b.Tt phd cho biSt hinh anh ctia c6c cludrng-sric diQn c.It trudmg ddu
{a tr} truorg md vecto "# ,rng it, uerrg t?i mgi diism
d.Tir trulng chi tdn tai xung quanh mQt ru*.he* '
cAu fr,: D0 ttr khuynh c6 dq l6n l6n nh6t o:
a Cgc bec dia Iy b Xfch dao c CUc tir b6c d
CUc nam dialy ca'u22: chgn da9 fintlung nh6t: Ddng diQn hong crrdt
1a1a6n n ddng dich chuyiSn c6 huong cria:
a electrgn;
c ion d;ds, ion 6m vd erectron r.u do
3:fll"HTfJ,??t,L-9:* 2? I?'-6ng day hinh tru c6 ban kfnh R, c6 chi€u ddi t, g6m N vdng d6y ctflt kh6ng khi, c6
ddng dien I chqv qu4 cdm ong ty do ddng tli*n gdy ucnionllo"g 6"g d6y c6 gi6tri;
a.z.rCI-'.| b zrr ,o-1.* J r* ti:i T
- -ilffit'."# - v.,
'ra
ur;
cdu24: Lgc Lorortz ta| oys
l9l *?,.d:n.tfch chuy€n dQng v6i vfn t6c fr,qp vdi duong sric mQt g6c a
trong t&-trudmg adu B co gi6ii r.i" nh6t khi: '
r UYP v,r LruurrB s
a cr = 00 : b cr, = 900 c q :1g00
d a : 450
cdul':MQt proton bay vio t.u trudng dAy:9 f.Tgg,B u-oi v4n t6c v
theo phucrng vu6ng g6c v6i
ducrng sric til thi vpch ncn quf d4o trdn c6 brin t inn n]N6u cflng proton bay vdo tir trucrng c6 B,=2B v6i
van t6c v'-ylz thi n6 vact nen qr.y aao c6 brin kinh: ' !v$ vqr- vrvrl'rr
a.2R b.R c.w2
d R/4 cdu26: Mot electron bay vdo tu tru&ng
fAp:o cim img tt 2T vdi van tt5c.v:5.106 m/s theo phuong hgp
(4);"
a.8.10-l ornN b 8.10-13 mN c 8.10-lo N
's
_.-.;
d.MQt d6p 6n kh6c
Cdu27: MQt khung ddy hinh chtt nhgt ABCDc6 diQn tich S, ddng diQn cha$qua khung c6 cuong dQ I,
d{t trong tir truong d6u c6 cdm img ttr B sao cho cim img tu vu6ng 963 vdi m{t phdng khung Ni5u tdng cim img tir l€n zlhn gi6m cuong dQ ddng di$n di + mn tfri momen ngdu $c tu tac dpng l0n khung c6 gi6 tr!:
a M=BfS " b M=BIS/2 c M:2BIS d M:0
Cdu 28: Hai ddng diQn theng dii song song, cirng chiAu, c6 cudng dO l6n luqt li I1=1A, Iz:2A d[t cilch 40cm kh6ng Ddng diQn ndy t6c dqng 16n m6i milimdt chi€u dii cria ddng diQn m$t lgc ld:
a.lgc hirt, F-10-8N b lpc dAy, F=10-N c lpc hrit, F:lnN d lgc diiy, F:lnN' C.du29: TAi t6rn cria mQt vdng ddy d6n trOn c6 d6ng tliQn ch4y qua, c6 cudrng d0 2,A, d{t kh6ng khi, "g"tri ta dugc cim ring til B:3,14.10-s T, ctucrng kinh cria ddng di$n trdn:
a.4cm b Scrn c lcm d.Zcrn
Cdu 30: Hai ddng diQn th6ng dii song song, nim cO dlnh m{t ph5ng (cr), cring chiAu vd cfing cu}ng
dO 24 dfltcfuchnhau 20cm kh6ng khf.ecem tmg tt t4i nhii"ng tti6m nim trong (a) vd cdch d6u 2 dary
c6 gi6 tri:
a.0T b.4.i0'6T c 8.i0-6T d E.l0-3mT
Tr'*:r\*ffi
n:,iJ 2 r-{ / zi
2c't t{ L' i