1. 2. 3.
, :
1. R
2. 5R
3. 4/5R
4. 1/5R
5. 2R
R=10 =318 i=5sin314t . ?
1. u=71sin(314t+450).
2. u=71sin(314t-450).
3. 50,5sin(314t+450).
4. 50,5sin(314t-450).
5. u=71sin314t.
, u=100sin ωt B, C=50 , L=20 , R=20 .
1. 100sin (ωt+900) B.
2. 100sin(ωt-900) B. U
3. 100sin ωt B.
4. .
5. 100/ sin ωt B.
18 . IBC ?
1. Ibc=0. IAB
2. Ibc= 9A.
3. Ibc= 18/ A. IBC
4. Ibc=18A. IAC
5. Ibc=6A.
.
1. 1. 2. 3. 4. 5.
2.
3.
4.
5.
: 1=70 , 2=50 , r1=9 O, r2=15 . , .
1. = 10
2.
3. = 0
1. 2.
. :
1. U=120sinωt. U, B
2. U=120sin(ωt120o). 120
3. U=84,7sin(ωt+120o). 60
4. U=120sin(ωt+120o). 0 wt
5. U=84,7sin(ωt60o).
: i=5sinωt A; U=100sin(ωt+30o) B. .
1. =433 . Q=250
2. =125 . Q=--250
3. =250 . Q=0
4. =216 . Q=--125 U
5. =216 . Q=125
1. I=Ua/ Z :
2. I=Ia
3. I=Ua/Z
4. I=Ia/
5. .
. . UB UC:
1. .
2.
3.
4.
5. .
(. ) 2.
, U ?
1. 4 .
2. 3 .
3. 2 .
4. 8 .
5. 1/3 . U
(r,x), , : u=112sin(ωt11030), i=2,8sin(ωt--48020).
1. r=40 ; =0.
2. r=24 ; =32
3. r=32 ; =24
4. r=32 ; =24
5. r=0; =40
i=2sin(ωt+1200),u=100sin(ωt+750).
.
1. P=70,7 BT, Q=--70,7
|
|
2. =141 , Q=--141
3. =87 , Q=100
4. =71 , Q=71 U
5. =100 , Q=87
, ,
, :
1. Z1=5; Z2=3+j4; Z3=3j4
2. Z1=5; Z2=5e-j2 /3; Z3=5e+j2 /3
3. Z1=5; Z2=--j5; Z3=j5
4. Z1=5e j10; Z2=10e j10; Z3=15e j10
5. Z1=5j2; Z2=5j2; Z3=5j2.
, , .
, , U=100 ; Z=10 .
1. 17,32
2. 10
3. 14,1
4. 5
5. 10/
, , , Io=30 A.
1. =45 . Io
2. =80 .
3. =120 .
4. =40 .
5. =60 .
500 /. ?
1. T=0,002 .
2. =0.02 .
3. ~0.0125 .
4. =50 .
5. =500 .
(. ) : =200 ; r1=8,66 ; L1=5 ; r2=10 ; L2=17,32 ; r3=1,34 ; =7,32 . .
1. 200
2. 41,8
3. 36,75
4. 58,56
5. .
, , U . , Z .
1. I=U/Z.
2. I= U/Z.
3. I=U/
4. I=0.
5. .
(. ), U, ?
1. 0
2. U/
3. U
4. U/2
5. U/2
I1
U: U
1. U=E1+E2I1R1+I2R2
2. U=-I1R1+I2R2E1E2
3. U=E1+E2I1R1I2R2 I
4. U=I1R1I2R2E1E2
5. U=-E1+E2I1R1+I2R2
: i1=5 2 sinwt; i2=14,1sin(wt+900). (i3) .
1. i3=11,2 sin(wt+26030) A i1 i3
2. i3=5+14,1/ =15 A
3. i3=11,2 sin(wt+63030) A i2
4. i3= (5 )2+(14,1)2 sin(wt-900) A
5. i3= (5 )2+(14,1)2 2 sin(wt+900) A
, , : U
1. U=UR+UC+UL
2. U= U2R+U2L+U2C
3. U=UC
4. U=UL UR UL UC
5. U=UR
:
1.
2.
3.
4.
5. .
, , : UAB=UBC=173,2 B; Z=10 . , , .
1. 14,1
2. 10 U
3. 17,32
4. 5,46 UAB
5. 8,66
U
, , , r1=6 , r2=8 , r3=3 , 1=30 , 2=10 , 3=5 .
1. 1 3 ., 2
2. 2 3 ., 1 .
3. 1 ., 2 3 .
|
|
4. 2 ., 1 3 .
5. 3 ., 1 2 .
V, - , V1 24 , r=16 , =12 ( )?
1. 56
2. 40
3. 24
4. 8
5. 56
i=14,1sin(ωt+300) u=141sin(ωt 600) .
.
1. P=1730 B Q=1000
2. =865 Q=500
3. =0 Q=1000
4. =0 Q=-1000 U
5. =3460 Q=-2000
, , 220 . , 11 .
1. 20
2. 60
3. 34,6
4. 11,56
5. 0
. . UB UC:
1.
2. /2
3. /2
4. 2
5.