(
*1
.1) =2rad/s,
L=1m, .
B=0,5Tesla, d=2L/5,
B
,
A
. . U
2
(
+
-
.2)
d
: . . .
L
U . . ,1Volt . U =0,08Volt, U =0,18Volt
.1
L,
,
2,
1
. .
B 2
U
B1
A
. U
=
(3B 2 B1
2 L .2
8
*3
L,
L1/L2
. , , .
B,
:
, . .
. ,
.
,
B
.
,
, . .E
4
(
.3
2 1L 1+
. =1
.3).
,
,
.
,
. ,
=
5 .
, /2, ( .4), 2
, =-
,
2
B
.
B
2
/2,
,
=0
/4
R
.4
/4 .
Z
.
., .
A
u B
L
2
=
TR
t
H
E
.5
.
1
*6
,
-1
1=5s
L1=0,5m
-1
2=3s
,
L2=0,3m,
.,
, =1 .
U ,
. U =0,76Volt
M
+ R
u0
FL
7
.5 ., u=0,5m/s, . 0 =45 . ,
L
r
, =1 .
F
B
-
L=0,2m
N
M
t=0,
.6 R
t.
8
UZH=E =0,1+0,25tVolt ( .6),
E, r
B
N
,
.7
r=5 . l=0,5m, m=5Kg
.
R
R=5 . ., . ,
E, r
B=2Tesla, t=0, u0=12m/s,
’
B
A
F
.
2
=2m/s
. .
.8
I=f(t)
. . 5 s. .
I/ t F =f(t)
FL=f(t) ,
. 5s. . =1,2+0,2tA
9
. q=8,5Cb
.7
. . 5s.
FL
.
I/ t=+0,2A/s
. FL=1,2+0,2tN, F =0,2t+11,2N . FL=8,5Ns, =58,5Ns, J=50Ns , . R=5 , ., E=12Volt I
, L=2m. B=1Tesla. r=1 .
E, r
,
L.
t=0
.
:
B
.
m, R +
-
, . .
. . ,
mg
, . .
1=12
L
. u =10m/s,
.9
2=2
.
2
*10
, . r=1 ,
=12Volt , m=2Kg,
.8.
L=1m
R=5 ,
B
. B=1T,
.
m1 m2
,
L
t=0, =3m/s2. .
FL=f(t)
E, r
F =f(t)
.10
. .
,
FL +
.
11
R2
. FL=2-0,5t, F =4+0,5t
L=1m, ,
. ,
FL=4
F
=12Volt R=3 ,
m=1Kg .9.
=2 .
s
s u=12m/s , r=1 .
I
=20
u0
B
R1
: .
, .
.11
, .
2
.
: g=10m/s .
12
.10, R=1,5 , m2=0,2Kg,
. m2
E=12Volt B=1T
.
:
,
.
. .uor=4m/s . PE=60Watt,Pmg=40Watt,P(R+r)=100Watt L=1m, m1=0,4Kg, , + C B , + r=0,5 . . . . .
.12
: g=10m/s2.
.
. I=2A
13
(
,
=300. R1=2 . 1m
. u =8m/s
.11),
L=1m
B
u
, m=0,1Kg
m, r, L
R2=0,5 , u .
R
. .
B=1T,
.13
.
3
.
: .
. . . . R1
*14
L=1m,
R 2.
,
2
: g=10m/s . . u =5m/s . U=2Volt
. Pmg=2,5W, PR=2,5W
m=0,05Kg
,
4
+
=300
.12).
u
C=0,1Farad.
2
, B=1T.
: .
-
B
.
.14
. .
. . .
x=1m
.
,
, .
2
:
g=10m/s . a. =2m/s E
*15
2
b.I=0,1 3 A
.UC
3 tVolt d.Wmg 0,25Joule
0,1Joule, WC 0,15Joule
=600,
B
.13, r=1
m=1Kg,
L=1m , B=1T, R=4 , (
u=15m/s.
: . FL, , mg,
N
+
u
2
)
4
. .
F
.
.15
.
: g=10m/s2. . F =9,41N, I=1,5A
*16
.14,
. P =141,15Watt
0
60
=2 ,
B
u, B,
., .
=f(t), .
=f(t)
u
.
4 . .
L
.16
*17
.
4
.15, . u=5m/s.
=0,25m, R=5 ,
=1 ,
0
B
=45 : . =f(t), .
= f(t), . = t=0,
f(t)
u
. . .17
*18
.
B
3T ,
u=0,5m/s. L
0
=60
3m,
R=5 ,
: . B
,
, (
.16) . . ,
I=f(t), . .
r
I=f(t),
R E
. =0,75+0,5t Volt
.
*19
u=1m/s
. I =0,15+0,1t A ( .17), B=1T, .
.
. .Q=0,3375Cb
=1m
.18
A
R=5 , =f(t)
.
I=f(t), . . 2 =3t-2 Wb, I2=-0,6A .
O
1 =t Wb, I1=-0,2A
B
3 =t+2 Wb, I3=0,2A
R
.19
20
r=0,5m ( .,
.18) =1 .
(Wb)
, ,
20
, .
3
. =2Volt,
1
4
5
t (s)
2
R. .
=16s-1
-30
.20
21
( , AO=0,2m .
=5s-1, L=0,6m,
.19)
.
=0,4m. R=3 . R1=1
.,
.
5
=1 , R.
22
. =0,09 R=5
.
,
.20.
I=f(t).
.
6