CLIS Zzz Chgn cdusai.[r]
(1)SE:
1rlEu
rRA
4spnur.uON
vAr
li
11NC
NrcN
HQC 2014-20rs
ffiveobang
*atoisau:
CAU
t:
Trong mQt m4ch dienkin
, ddng diQn cam,img xuSt nien mris
A/
m4ch diQn ttugcd{t
trong mQt tu truoxg kh6ng tt€uB/ m4ch diQn tlugc
d{t
trong mQttt
truong d€uCl
trongm4ch c6 mQt ngudn diQnD/ tu thdng qua m4ch dien bi6n thi6n theo
thdi
gianCAU
Z: mpc dich cria dinhluflt
Len-xo
dtrng dCN
x1cdinhchi}u
dong diQncim
img xu6t hign mQt m4ch tli$nkin
Bl
xdcdinh sU bi6n thi€n criatir
thOng qua mQt m4ch diQn kfn,ph[ng
Cl
xhc dinh dO 16rn sudt diQn dQngcim
img m$t mach diQnkfn
Dl
xhc ttfnh cuong ttQ ddng dien xu6t hiQn mQt m4ch diQnkin
CAU
3:mQt vdng ddy d6n trdnkin
c6 diQntich
0,4nf
d{t
trongt}
truong ddu c6cim
imgtt
B = 0,6 T c6 chi6u nhu hinh ve N6ucim
img
ttr tdng di5n 1,4 Tthoi
gian 0,25 sthi
O
Chi0u ddng diqn
cim
img vong d6yli
:A/
theo chiAukim
d6ng hO B/ ngugc chi0ukim
d6ng hdC/ kh6ng c(6 ddng dien
cim
ung nOn kh6ng x6c dinh dugc chiAuD/
chua x6c dinh du-o c chi$u dong diQnvi
kh6ng Ui6t ctriAu cira v6c to ph6p tuyiSn ctia vdng d6y0
o
DIEM
OF
0
0
S6p[aCh'
SOth*
tu
gi6mthi
ghiI ,,4
(2)CAU
4: mot khung ddy hinh trdn bfur kfnhR:
5 cm <t{t fiong ttr trucmg deu c6B
:
5.10-a
T
Tt
th6ng quakhung dfly ld O
-
3,4.!0-5
Wb
Tim
gbc ahgpboi
tir truongB
vA phrlp tuy6ni,
cinkhung
ddytr6n
'
Al
q,_
300Bl
a=
450Cl
a
=.600
Dl
a:
750CAU
5:
chgndfp
6ndring
Cho mQt
vdng
dfrry dfittir
truong bi6n thi6nnhu hinh v6 Eucmg
sfc
tu
hqpvoi
rn$t phang khung m6t g6c aOo diQntfch
25cmz
i;
q
3
Tim
su6t dien dQng cfim ,rrrg er, xu6t hiQn khung2
gidy d6uti0n
vi
su6t diQncim tmg
ec1trong khung 1,5 gidy ti6p theo
Bl
ect:
1,875.10-4 V
vi
irz:0
Dl
ecr:
1,875.10-4V
vder2:
1,875.10-4V
CAU
6: MQt k*rung d6yhinh
vu6ngm6i
cairtrdii
5 cmnim
trongm{t
ph6ng ttrang dtmgd{t
trong vtrng c6ttr
trucrng CCu
nim
ngangB
:
0,02 T V6cto
cdrnrng
til
B t qpvoi
ph6p tuyOn cria khung ddy mQt g6c 60 o baygicr
#u
giim
cdm ungtir
Btt
0,02t
aen theo quy lufltfi,:
Q;,02- 0,1.t (vdi t
(s) ld thcri giantinh
tuttri
tat
dAu eiam
cim
imgtt
B
Su6t diQn dQngcim
rmgfhdt
sinh kho6ngthoi
gian ndy khung d6y IdAl
25.10-sV
Bl
2,5mV
cl
12510-sv
D/
0, 125mV
CAU
7:mQt khung d6ytrdn
,dlt
trong mQt tir trubng d6u cho v6c tcr ph6p tuylinm{t
khung hqrp m$tg6c
x
v6i
vdc tocim
img
tir E
fruong
hqp ndo sau ddy ddng diQn cdm imgkh6ng
xu6t hiqn khung?A/
ttr trucmg khung tu6n theo quylu{t
B =0,02'0,1.1
Bl
gbc o( t?obbifrve F
lu6n le 900Cl
thay eOi aien tich khung d6yD/
khung chuyiSn dQng quay ldm thay aOi gOc o( t?obdi
fi
vilE
CAU
8: Khung dayMNPQ
cfng, ph5
g, diQntich
25crr],gdm
10 vdng Khung ddy ttugc ilpt tir truongd6u ve bi0n thi€n nhu d6
thi
hinh
bdn Vecto cdm tmgtir
vudng g6cv6i m{t
ph6oe khung vd c6 chi6u nhu hinh v6Tim
chiOu vdd0l6n
ddng ttiQn c6mimg khung Cho dien
trd
ctra khung d6yli
0,1OA/
cung chiAukim
d6ng hO va c6d0l6n
ic:
15.10 -4A
B/
ngucr c chi€ukim
dOng hOvi
c6 dOl6n
i,
=5.10-4
A
C/ ngugc chi6u
Um
AOng h6 va c6 d0 lcrnt.:
15.10-4A
D/
cirng chi6ukim
d6ng h6 va c6d0l6n
ic:5.10-4
A
"4
#-3
N
e'
:
L,875mV
vd ecz-0
Cl
ecl:
t,875 mV
vi
es2*1,875
mV
B (T)
B (T)
(3)CAU
g: cho 05n rtienMN
d{t
tr€n hai ray nhu hinh vO HQthdng c6 ttiQn trO r vd
rtfi
trong tir trudrng itdu hicdiu MN
d{mg y0n ,ngudi
tat6c dQng lnm choMN
chuyi5n dQng , b.o Qua mgi ma s6t ( hairay dri dei
)
tim
ciu
tri
lli
dung.,
N
c6 su6t dien dQngctm
img , d6uN
6m ,dAuM
ducrngB/
su6t dien dong c6m img bturgv6i
hiou diQn the gifra hai dau chuy6n<tQng '
'
C/ c6 ddng ilign cam
img
trong khung ngugc chiAukim
d6ng hoDl
cbddng tligncim
img
trgng.khungctng
chidukim
dOAg hoCAU
tO: Trongtir
trucmg <tiu (B:
0,5T ),mQtkitn
loaiAB trugt
d6u kh6ngma
sdttr6n hai ray ThanhAB dei
10cm.Ti5c d0truqt
v:
1,5m/s.Tim
su6t dign dQngcim
ungtr6i
thanh.Ui6tE
t i t
eE
N
oc:
Ar75VB/
e,:7,5
mV
Cl
oc:
7510 -3V
Dl
er-0V
CAU
l1:m0t
thanh a6neien
diizlcm
, chuy6n dQng tirtrucrngd€u,
c6m imgtu
B = 0,50T
V6cto
v4n t6c
I
vu6ng g6cvoi
thanh , v6cto
cim
imgtu F
cfrng vu6ng g6cvoi
thanh vd ldmvoi
v6c to v4n t5c r7mQt g6c 30
tinh
su6t dien dQng c6m imgtqfl"h
v = 4,0 m/sAl 0,2v
Bl
0,346V
Cl zOV
Dl
34,6V
CAU fZ:
MQt ngu6n diQn c6 su6t diQn dQng E:
5V,r:
0 vir day d6n c6 diQnt&
R=
3Cl t?o m4chkin
gioi
h4nb6i
die;
fich
S:
0,2 m2 nhu hinh v6, ttr trudng dflt vu6ng g6cvdi
matphlng
mpeh ttiQn C6m rmgtir
biilp thi$n*thep quy
lW
B
=
10t (T
)Tinh
cudrng ttQ ddng diQn m4chtrong truorg hqp
hinh vEdu6i
t Ia
*i., \' "1 s1,,1,1 : 'N
i=I
An
Bl
i:2A
cli:l A
D/
i:lA
Thanh hffE
tnrst
sang phai
33
A
CAU
l3:chqn
phatbi0u saiAA{OI t6rn t<im lo4i dao dQng gifra hai cpc crla mQt nam ohdm
thi
trong t6mkim
lo4i xudt hiQn ddng diQnFu-c6
B/
HiQn tuqngxuft
trign ddng diQn Fu- c0 thUc chSth
hiQn tuqng cdm img <liQntu
C/ Ddng diQn Fu- c6
l6i
sat cria m6y bi6n thiS ld ddng diQn c6 haiD/
chiAu cria ddng ttiOn Fu- c6 dugc x6c dinh theo dinh lu6t Jun-Lenxo
CAU
14: Chgn mQt it6p 6n saikhi
n6i vC ddng diQn Fu- c6:A/
n6 gdy hiQu img t6a nhiQtB/
lu6n ld ddng diQn c6 hai (4)cAu
15: Ph6t bi6u ndosai
i
Sudt dien dQngtu
cfimc6
gi|trilcrn
:,,
B/
ddng diQnting
nhanh
S
D/
ddng diQn bii5n thi6nnhanh
,CAU
16: mQt 6ng ddy c6 t10 ddil,diQn
tich
ngang S, cu5nN
vdng ddy c6 dQ t.u cnmL
Hdi
tdng g6p d6isd vdng cutin
vi
chi€u dni 6ng cfrng t6ng g6p d6ithi
d9ty cim
ctra ting ddym6i
L'
li
bao nhi0u?A/
L':!
gll'-L
Cl
i'=zL
Dl
L'-1.
tu u
2
CAU tZ:
mQt 6ng ddy ddi 50 cmti6t
diQn ngang cua 6ngld
10 cm2 g6m 100 vdng Hp s6 Lucim
cria 6ng ddyld:
N
L:
251tH
Bl
L:250
1tH
CI L
=
125$H
D
=
1250 1tHCAU 18:
MQt ddng dign 6ng ddy php thuQc vdothdi
gian theo c6ngthrlc
i:0,4(5-t),i
tinh
bAngA,t tinh
bang s.6ng ddy c6 hQ sO tW cdm
L:0,05H.Tinh
sudt dign dQng t.ucim
trong 6ng ddy vd ddng dipn tUcim
( cho R:2{))
khi
ddng diQn gi6m dOutir
2A
dtinA
Al
e1r:A,ZY
vi
i1, =0,IA
B/
etc:
A,A2V
vd rtc =0,014
C,l
etc:
aiOOZV vd itc:
0,001A
D/ kh6ng x6c dinh ilu-ocvi
kh6ng c6thoi
gian bi6nthi6n
CAU l9:chgn
ddpinitfing
MQt 6ng ddy c6 hQ sd tU c&m b6ng 0,02
H
Khi
c6 ddng diQn chpyqua,6ng
ddy c6nlng
lugng 0,08 J Cuong d0 ddng diQn 6ng ddy b6ng :xiTr^
wt
zrlTd,
:
cl
zA
Dl
4A
CAU
20: MQt 6ng d6y ddy ddi 40 cmc6
titci
800 vdng d6y DiQn tich titSt di$n ngang cria i5ng d6ybing
10cm2 Cucmg dQ ddng di$n qua 6ng tdng
ttl0
A6nA
;H6i
ngu6n di-6n dA cung c6p cho Ong d6y mQt n6ngluqng b6ng bao nhi€u ? EiQn
trd
ctra 6ngdiy
r'At ntrO c6 th6 b6qua
:A/0,016J
Bl0,l6J
clo,o3zJ
Dl0,32I
CAU
2l:chgn
cdudfng
khi
6nh sang truy6n quam{t
phdn cdch gitra hai m6i trucrng su6t khdcN
gbckhric x4 baogid
cfing nh6 hcrn g6ct6i.
B/
g6c khric x4 baogid
cfing 16n hcrn g6ctdi.
(5)CLIS Zzz Chgn
cdusai
,N
Chi&su6th
d4i luqng k*r6ng c6 tlonvi
;
-
;B/ Chii5t srdt tuyet di5i ctra mQt m6i tru&ng lu6n lu6n nh6 hcvn
ad
Cl
Chi[tsudt ruy-ct d6i ctra ch6n khong bang1
*
Oi Chiet su6t tuyQt d6i ctra mQt mdi truong kh6ng nh6hon
l.
CAV
ZSzChi{u rinh sang tir khdngkhi vio
thriytinh
c6 chii5t suetn:
1,5 N6u g6c khric xq rli
r:
40thi
g6ctoi
i
ldN 30
Bl 40
cl 60
Dl
90CAU
ZlzChii5u mQt chumtia
sang song song,hgp
trong kh6ngkhi
toi
mflt nuoc(n:413)vdi
g6ct6i
h
450G6c hqrp boi tia khric x4
vi
tia tcri ld:N
D:7oo3z'
B/
D=
450
cl
D
=25032'
Di
D:
12058'CAU
ZS: Mor tia sang chi6ufi
kh6ngkhi
vio
mflt thujrtinh
du6i g6ct6i
600thi
g6c khricxp
li
:S0 Cfrii5t su6t cfia thuytinh
laN
n'=1,5
B/n:1,6
Cln:1,4
D/n:
1,414
CAg
Ze;Mqr
ch4u nu6c chrla mQt lorp nu6cdiy
0,24(m),chi6t
su6t ctra nu6cli
n:
4B.Miltd{t
trong kh6ng khi, nhin gannhuvu6ng
g6cv6i m{t
nu6c sE*"V
aa1 chflu duong nhu cdch mflt nu6c mQt doan bAngN
32(*,1,)
B/
0,18(cm)
C/
18(cm)
Dl23
(cm)CAU
ZltMqt
tia s6ng truyAnffi
m6i truongA
vdo mOi trudrng Bdudi
g6ctoi
90thi
g6c khric x4li
80Tinh
v3n t6c
rffi
sr{ngm6i
trudnge
Bi6t v6n t6c anh sang mOitrudng
Bh
2.105 kmlsN
2,25.10skm/s
B/2,310s
km/sC/
1,8.105 km/sDl
2,5J0skn/s.
I
4
CAU
Zg: G6ctdi gi6i
hAn phan x4 todn phdn ctrathui
tinh AOivoi
nu6c ld OO0 Cniet su6t cria nudc ld5
Chii5t su6t cira
thuj'tinh
laA,/
n:
1,5
Bl
n:
1,6
Cl
n:1,54
Dl
n:
1,62CNI
ZgzChi6t su6t ctra nudc ldf
Cf,i0t su6t cria kh6ng lA 1.G6ctdi gi6i
hande
xhy rahiQntuqng
phan x4 todn phen bang:N
0,750
vi
tiatdi
truyen tir nudc sang kh6ngkhi.
B/
48035'vi
tiatdi
truyAn tu nu6c sang khdngkhi.
Cl
48035'
vi
tiatdi
truy€n tu kh6ngkhi
vdo nu6c (6)CAU
30:Tia
sang truyOn kh6ngkhi
tdi glp mit
tho6ng cria mQt chdt l6ng, chii5t suAtn:
r5
Haitia
phdn xp