Slide vật lý lớp 9 bài 35 các tác dụng của dòng điện xoay chiều, đo cường độ và hiệu điện thế xoay chiều _T.T hương





Tháng 2 năm 2015


 !"#$#%&
'()$*#$#+, /)$*01)23456-7-86.96:
;<=>?@>A
BC:-(:9
BC:-(:9
DEFGEAH0
DEFGEAH0
<=IJGEAH
<=IJGEAH
#%&C!K#LC*MN*OP-
#%&C!K#LC*MN*OP-
13QCR13Q#SC13QT+$
E)PUVB)5C1#W+
XVB)5C1#W+
BC:-(:9
BC:-(:9
DEFGEAH0
DEFGEAH0
<=IJGEAH
<=IJGEAH
BC:-(
:9
(Y P#Y*1153+C%&Z
C!)[*3U0\CK) #\+53+11U)

#]^#^1#+5C3_1`53+C%&Z0
(+a)[53+1b$Y#c11`YCLP4\*+^S
CLP1+aY1`11YCLP1b1a0
(\*)11YCLP11U)C#d1#SS1*d$1#c
#e13fC#$C1VgC#1#+5CC#U^ +1"+1b$
CRYh$+4`11U)#^1#+5CiCC!*j
4\YBCVBCT+0
BC:-(
:9
,0kBC#Z1
(#LYBC4%l111C13Q#SCNT+$NCR1b$
3_4Sm$^1#W+0
-
aC!n4%l1C#n#S)1#ZCo*d1CR4p1#W+
V#3_4S4p1#W+0
-
#LYBC4%l1Vn#S+1b$$)PUVBXVBm$^
1#W+Nhq3Q4%l11#i4\41%j45#S+
4SC#B#S+3Q1b$3_4Sm$^1#W+0
:0#45
-
rC#LV#)s1)t1#4SN1`MC#Z1$CW
4S0
-
`#ZC#i#c1LC*MNh$^) # 1Z+V#$
#c1
u
v
w0kxy
(BChq3QC##C#t$)PUVBNXVBm$^

1#W+0
0DEFGEAH
,0#n#S)
w0kBC*+L
0zDEFGEAH
,0#n#S)
w0kBC*+L
0<=IF
JDEuGEAH
,0#n#S)
w0kBC*+L
0D{
0|
BC:-(
:9
BC:-(
:9
013Q1b$3_4Sm$^1#W+
,0#n#S)
220V
Đinh sắt
Hình 35.1
BC:-(
:9
}+#o')#]^#gP1153+~15CEO11
53+~15C4\4%l1VBCT+4i#•C€
5CE•#BCY‚4S
5C•13Q1b$
3_4Sm$^1#W+
C Nam châm điện

')4]C!*j4i!ƒ(]^
#^1#+5C4\CBPCQ1„
')4]C!*j4i!ƒ(]^
#^1#+5C4\CBPCQ1„
')4]C!*jh$!ƒ(]^
#^1#+5C4\CBPCQ1„
')4]C!*jh$!ƒ(]^
#^1#+5C4\CBPCQ1„
Trả lời!*j
G`$G`$
A. Tác dụng quang, tác dụng
nhiệt
B. Tác dụng quang
C. Tác dụng từ.
B
Bút thử điện
A
Bóng đèn
BC:-(
:9
013Q1b$3_4Sm$^1#W+
,0#n#S)
#BCY‚4
…
 
…
C%lm^!$
13Q1b$3_
4
…

m$^1#W+
`4†3}^C`1
`4†YiC
C#q4
…

$)1#})4
…

`4†3}^C`1`* 
P#Ch
`4†YiCC#q4
…
P#C
h
$)1#})4S#iC4#hsC
13Q#
…
CNC1
3QT+$
13QT+$
13QCR
kBCT+C#n#S)
w0kBC*+L
( _ 4S m$^ 1#W+ 1` C1 3Q #SCN C1 3Q T+$N C1
3QCR0
BC:-(
:9
3UC13Qh#*n1b$3_4Sm$^1#W+
BC:-(

:9
#})1Z+SC)
BC:-(
:9
q3Q3_4Sm$^1#W+4\*•^#SC
‡_h%~
u^h•^C`1
BC:-(
:9
q3Q3_4Sm$^1#W+4\*•^#h
`4†$*#U
`4†hl4aC
`4†1)P$1C
013QCR1b$3_4Sm$^1#W+
,0#n#S)
BC:-(
:9
013QCR1b$3_4Sm$^1#W+
,0#n#S)
K
+
-
K
-
+
p1#W+
3_4S
Hình 35.2 a
N
S

N
S
BC:-(
:9
013QCR1b$3_4Sm$^1#W+
,0#n#S)
K
+
-
K
-
+
p1#W+
3_4S
Hình 35.2 b
S
N
S
N
BC:-(
:9
}+ #o k# hq 3Q 3_ 4S )5C 1#W+N B+ *i1 4"+
1d1ˆs1‰1b$C#$#$)1#})Y‚#iCNC#KV#4p1#W+
3_4S`hŠY‚4r^%l1*t0i#$^h$€
')4]C!*j4i!ƒ(]^
#^1#+5C4\CBPCQ1„
')4]C!*j4i!ƒ(]^
#^1#+5C4\CBPCQ1„
')4]C!*jh$!ƒ(]^
#^1#+5C4\CBPCQ1„

')4]C!*jh$!ƒ(]^
#^1#+5C4\CBPCQ1„
Trả lời
!*j
Xóa
G`$
A) Đúng
B) Sai
BC:-(
:9
k
+
-
‹
N S
K#:90:
K#:90w
Thanh nam
châm đổi
chiều liên tục
BC:-(
:9
}+#ok#3_4Sm$^1#W+1#t^T+$a3}^C#K
1d1ˆs1‰1b$C#$#$)1#})*"*%lCY‚#iCN4r^* 
CQ10 +^  #} * 3 3_ 4S *+} P#  4p 1#W+0
i#$^h$€
')4]C!*j4i!ƒ(]^
#^1#+5C4\CBPCQ1„
')4]C!*j4i!ƒ(]^
#^1#+5C4\CBPCQ1„

')4]C!*jh$!ƒ(]^
#^1#+5C4\CBPCQ1„
')4]C!*jh$!ƒ(]^
#^1#+5C4\CBPCQ1„
Trả lời
!*j
Xóa
G`$
A) Đúng
B) Sai
BC:-(
:9
013QCR1b$3_4Sm$^1#W+
,0#n#S)
#VBCT+C#n#
…
)
_4
…


…
C%lm^
!$OC#$#
$)1#})
#W+1b$*d1CR
uX
…
C1#W+Œ4p
1#W+

G$^1#W+
k#4p1#W+1b$3_
4
…
C#K1#W+1b$*d1
CR1•4p1#W+0
iCŒr^
iCN4r^
* CQ1
#W+1b$*d1CRC#$^
4p* CQ10
w0kBC*+L
(k#3_4
…
4p1#W+C#K*d1CR1b$3_4
…
C1
3Q* $)1#})1•4p1#W+0
BC:-(
:9
51&4Sm$^1#W+
u^Y&)u^V#$
01%j453_4S#S+4SC#B1b$)t1#4Sm$^1#W+
BC:-(
:9
01%j453_4S#S+4SC#B1b$)t1#4Sm$^1#W+
,0#n#S)
BC:-(
:9
01%j453_4S#S+4SC#B1b$)t1#4Sm$^1#W+

w0kBC*+L
- Đo hiệu điện thế và cường độ của dòng điện xoay chiều bằng
vôn kế và ampe kế có kí hiệu AC (hay ~). Kết quả đo không
thay đổi khi ta đổi chỗ hai chốt phích cắm vào ổ lấy điện.
,0#n#S)
BC:-(
:9
_4S
m$^1#W+
1%j
1%j
453_
453_
4S
4S
13Q
13Q
CR
CR
0D{
Lực từ đổi chiều khi
dòng điện đổi chiều.
1C1
1C1
3Q
3Q
Tác dụng từ,
nhiệt, quang,
ngoài ra còn có
tác dụng

sinh lí.
#S+
#S+
4SC#B
4SC#B
Vôn kế xoay chiều có
kí hiệu AC ( hay ~ )
Am pe kế xoay chiều có kí hiệu
AC (hay ~ )
BC:-(
:9
CLP,\41%j453_4S#S+4SC#B
m$^1#W+C$3fE)PUVBXVB
')4]C!*j4i!ƒ(]^
#^1#+5C4\CBPCQ1„
')4]C!*j4i!ƒ(]^
#^1#+5C4\CBPCQ1„
')4]C!*jh$!ƒ(]^
#^1#+5C4\CBPCQ1„
')4]C!*jh$!ƒ(]^
#^1#+5C4\CBPCQ1„
Trả lời
!*j
G`$
G`$
0L3Q
E‰ u5C1#W+Vn#S+ˆ#$^(‰0
‰ u5C1#W+Vn#S+Eˆ#$^‹‰0
‰
•CVŽNV#XP#}YSCE#$^0

‰ G$^1#W+Vn#S+Eˆ#$^‹‰0
BC:-(
:9
CLPwu5CY`4†1`#8(:•0‡"*%lC)s1
)t1#4S)5C1#W+!ƒ)t1#4Sm$^1#W+
1`1f#S+4SC#B*80!%j#lP4†h
#&€
')4]C!*j4i!ƒ(]^
#^1#+5C4\CBPCQ1„
')4]C!*j4i!ƒ(]^
#^1#+5C4\CBPCQ1„
')4]C!*jh$!ƒ(]^
#^1#+5C4\CBPCQ1„
')4]C!*jh$!ƒ(]^
#^1#+5C4\CBPCQ1„
Trả lời
!*j
G`$
G`$
0L3Q
E‰ us1)t1#4S)5C1#W+
‰ us1)t1#4Sm$^1#W+
‰
$C!%j#lPh#%#$+0
-
 c1 5 3+ P#" # #O C! h1# 
V#$C!$ •
( c1 P#" ‘ ` C#\ U) 1#%$ YBC’ h1# 
V#$C!$ •
-

‡)1}+#o“h1#V#$C!$ 11
YCLP:90,•:0“•:907•:90-h1#YCLPC!$.8N
•
-
 c1 C!%O1 5 3+ Y :8 ‘!+^W C 4S
y4m$’•
- @*t1XC#Z1W1Xh+•C1b$3_4S
1Xh+•CCo$#SC1b$3_4S0