<span class='text_page_counter'>(1)</span><div class='page_container' data-page=1>
.Y
H<sub>\,</sub>
..\
\
DE
KIEM
TRA
11
BAN
TUNNTTU
*rq
!*"y'
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:
$t^Fol9
tir truhng d6u c6
cim
rlmg tir 0,5mT sao cho c6m ung tu hgp
v6i"iAt
pta"g".*
kl'rung mQt g6c 60". Momen ngau lgc
tt
tric dpng l6n khung c6 dQ lon:
a.
M:1,5.10-2Nm
b.
tvt:z,6.loaNm
-
c.xi:z,a.i0-5Nm
<sub>d. </sub><sub>M:I,5.10-sNm</sub>
C6u 3: +' Lgc Lorentz t6c dr;ng l6n mQt diQn tich chuyiSn dQng voi
vfn
t6c Ttrong tu truong <I€u B'c6 itSc
di6m:
Ir
lz
a. lu6n ti6p tuy6n v6i quy dao
c. chi hudng vlro tdm
khi
q>0
a.500 vdng
b. lu6n hudng vA tdm quy dAo
d. chua the
tet
luan
vi
cdn phu thuQc vdo B
c. 100 vdng
C6u 4: trl0t.Ong ddy c6 chi6u
dii
100cm, cudrng AQ ddps diQn qua mdi vdng ddy
ln
4A, cirmrlmg fir b€n
trong ldng 6ng ddy ln 2,5t2.10'3
f.
SO vdng d6y cria 6,rig day
li:
b.250 vdng
c6u 5: Hai ddng diQn theng ddi duqc rtpt trong kh6ng khi dugc sfp x6p nhu
hinh vE tpo <sub>ry </sub>c6c mi6n A, B,
c,
D, miAn md
J.*,rng
tr) do hai ddng &ipn gay
ra ngugc chi6u nhau:
a. MiAn
A
vi
miAn
B
b. miAn C vd D
c. Mi6n
A
vd.C
d. Mi6n B vd C
Cdu 6: MQt ddng diengan-g96-9uong dO 5A trong kh6ng khi. Cem ring tir do dong ctiQn g6y
rutqiM
c6
dO lon
2.l}'s
T. Di€m
M
c6ch d6y:
c. 5cm
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<span class='text_page_counter'>(2)</span><div class='page_container' data-page=2>
;
CduT:Ddng cli$n
*rlng
dii
c6 cu&ng AO
i
A+t trone tu tru&ng d6u c6 c6m img tir B sao cho ddng diQn
vu6ng goc
vdi
tir
trulng-thi
ddng ttieri chiu t6c dgng ctia lgc tu F. Ntiu
t[ng
<sub>6rong </sub>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 4
Hn
d. Khdng d6i
Cdu 8: MQt
doil
day d6n
dii
5 cm c6 ddng diQn 0,75
A
ch4y qua.clat trong 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 trong tu trudng. Xoay ddng diQn sao 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 nhau
Cdu 1 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 trong tir trudng dAu c6 th6 vC dugc mQt vd chi mQt
dulng
sirc tir.
b.Euong srlrc tir do 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 ra tir cuc b6c, di
vio
cuc nam.
Cdu 14: N6u cubng dQ ddng diQn trong 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 trong
til
trudmg c6
chiu lyc tir c6 chi6u ttr tr6i sang ph6i, chi€u ddng dipn trong truhng hqp tr€n:
b. tir duoi l6n tr€n
chi6u ttr trong ra ngoai thi
d. tir phei sang
trii
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<span class='text_page_counter'>(3)</span><div class='page_container' data-page=3>
cdu 17: MQt t1o.4n devdan
AB
<sub>dei </sub>
uT:,qddng
<sub>diQn </sub>
<sub>I </sub>
:5A
9h4y qua d{t
<sub>lolglorg </sub>
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
<sub>i;;i$i;. </sub>
<sub>dpng t6n</sub>
ddng diQn:
4.a,1 5N
<sub>b.0,3N</sub>
c. kh6ng
dt
dfi
liQu
d. ONI
Cdu'18: Hai ddng rliQn th6ng aai bO
ctng
<sub>cudng </sub><sub>d0 </sub>
<sub>Ir </sub>
:
<sub>12 </sub>
<sub>, </sub>
<sub>c6chnhaum6t</sub>
H"-tg
l,,.?lr-Ts
ru do hai dong diQn g6v
rui4irli6m
mcacrr
aa,
rr"i-aore
diQn c6 chi€u nhu hinh v6, chidu cta ddng dign Ir vd
12li:
a.Ilvd 12 cirng hucmg
ra
<sub>b. </sub>
<sub>Ilvi </sub>
<sub>12 </sub><sub>cirng </sub><sub>hunng </sub>
vdo
,r,G---c.
Il
hudng vao va.12 hunng
ra
d.
Il
hudrng ra vi.12 hucnrg vdo
cdu
19: MQt electro:^buy.u.1o ugrrg c6 c6 diQn trucrng rl6u
vi
hr
trulng
d6u md kh6ng
bi iech phuong ban dAu, chi6u cduvecto
cim
img
tola,
a.Huong
vio
<sub>b. hucmg </sub><sub>ra</sub>
I
I
-l-
--Ar
M vl2
l$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 <sub>tfch dring y6n</sub>
b.Tt
phd cho biSt hinh anh ctia c6c cludrng-sric diQn
c.It
trudmg ddu
{a tr} truorg md vecto
<sub>"# </sub>
,rng it, uerrg nhau 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 <sub>c. </sub><sub>CUc </sub><sub>tir </sub><sub>b6c</sub> <sub>d. </sub>
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 trong kh6ng khi, c6
ddng dien
I
chqv qu4 cdm ong
ty
do ddng
tli*n
gdy ra
ucnionllo"g
<sub>6"g </sub>
<sub>d6y </sub>
<sub>c6 gi6tri;</sub>
a.z.rCI-'.|
b. zrr.
,o-1.*
J.
r*..ti:i
<sub>T </sub>
-.
-ilffit'."#
<sub>- </sub>
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
<sub>c. </sub>q
:1g00
d. a
:
450
cdul':MQt
proton bay
vio
t.u trudng
<sub>dAy:9 </sub>
..f.Tgg,B
<sub>u-oi </sub><sub>v4n </sub><sub>t6c v </sub>
theo phucrng vu6ng g6c v6i
ducrng sric
til
thi vpch ncn
quf
d4o trdn c6 brin t inn
n]N6u
cflng proton <sub>bay vdo </sub><sub>tir </sub><sub>trucrng c6 </sub><sub>B,=2B v6i</sub>
van t6c
v'-ylz
<sub>thi </sub><sub>n6 </sub><sub>vact </sub><sub>nen </sub><sub>qr.y </sub><sub>aao c6 </sub><sub>brin </sub>
<sub>kinh: </sub>
' !v$
vqr-
vrvrl'rr
a.2R
<sub>b.R</sub>
<sub>c.w2</sub>
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
</div>
<span class='text_page_counter'>(4)</span><div class='page_container' data-page=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$qua khung c6 cuong dQ I,
d{t
trong tir truong d6u c6 cdm img ttr
B
sao cho
cim
img tu vu6ng <sub>963 </sub>vdi
m{t
phdng khung. Ni5u tdng
cim
img tir l€n
zlhn
gi6m cuong dQ ddng di$n di + mn tfri momen ngdu
<sub>$c </sub>
tu tac dpng l0n khung c6 gi6
tr!:
a.
M=BfS
"
b.
M=BIS/2
c.
M:2BIS
d.
M:0
Cdu 28: Hai ddng diQn theng
dii
song song, cirng chiAu, c6 cudng dO l6n luqt
li
I1=1A,
Iz:2A
d[t
cilch
nhau 40cm trong kh6ng khi. Ddng diQn ndy t6c dqng 16n m6i milimdt chi€u
dii
cria ddng diQn kia m$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 trong kh6ng khi,
"g"tri
ta do 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 trong m{t ph5ng (cr), cring chiAu vd cfing
cu}ng
dO
24
dfltcfuchnhau 20cm trong 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-{
<sub>/ </sub>
zi
2c't t{
L' i
</div>
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