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DÒNG ĐIỆN XOAY CHIỀU
Chủ đề 1: Các đặc tính của mạch RLC nối tiếp
Câu 1: !"#
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Câu 2:)*+!,-./01230"45"6(0
73/08"9:1;07/<
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Câu 3: '>0+!,9!<;..:1;"
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Câu 4:K !"đúng nhất J.6,7>0+!,9L
A. ,7>0!MN1$
B. ,!M6:1;4,N1$
C. ,6:1;!M,ON1$
D. :1;MN1$
Câu 5PQ #J.6,0+!,
PR-.;(9@∼PR-./9@∼
P-.9@∼'PST4/*4;(∼
Câu 6:U6V+!,.0*WX6V6V;7 !(J9P
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C. U024*4(0*W"H;7 !$
D. '>01<6<":>*Z07/9J$
Câu 7:*9*;:W$)277>0[!4T
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Câu 8:R;]:FX60+!,^%_?E\`Da%88?EbD$*I]-
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Câu 9P'J3;X.*ZgY(J$R+(!*0
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Chủ đề 2: Pha của dòng điện
Câu 1:R;;7 !.0*W*X6V;/0O6;;
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Câu 4:R;+!,8*=OX$008
6:1;7>0<"
n? d?? E D
8
u t V
π
π
 
= +
 ÷
 
6
nEd?? DE D
5
i t A

π
π
= +
$
*6M*W3"P
A. 6&%d?
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$ B. 6&%d_
Ω
$
C. 6&%d?
Ω
$ D. 6&%8?
Ω
$
Câu 5:U+!,-;*P0*W/0O;($
h O 0   
?
E DE D
e
u U t V
π
ω
= −
 "4        9 7> 0  <   .   
?
E DE D
=
i I t A
π

ω
= +
$U
A. 0*W$ B. /  0  $  C. ;  (    (  $    D. ;  (  .  0  *W   
Câu 6:RX;;.]6;/0*X60+!,9]9
:1$oX4;/06V/0W*49
A. ]Y*:V$
B. ]YOJpYf;6073/0qX4$
C. ;3]JS!M$
D. ]JpY*:V$
Câu 7PR;+!,JS *.%_?
Ω
O6;0
0a%d8?b^
≠
?9@"06Va;.e?
?
ST3"
P=emPr8mPd55m'P8nnm
Câu 8:U+!,X$U0*W%d??
Ω
;7 !(.;c
(/.07%
π
5
d?
−
s$RX600+!,%a
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U00t6V000*W9*Z;C(3
;7 !"
A. %
π
d
\B. %
π
d?
\C. %
π
8
d
\ D. %
π
8
\
Câu 9:0+!,;7 !X6V/0$U;"0300
[;7 !6V:1;7>0*"
=
π
$\0007/[/
0I
=
"0007/[;7 !$U;"0300[
;7 !6V00[*4"
$?$ $
8
π

$ $
=
π
−
$ '$
8
=
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Câu 10:o*;0+!,JS :1;7>0*u6V
00[9!
$/06*W$
$;7 !(6/06V(JgY7J$
8
$0*W6/0$
'$0*W6;($
Câu 11:R;/0.7J=?EΩD$Qp/0!6V"J00J
7:V !:F;7>0<.*u6V0;.
5
π
$;;(.(JIe?EΩD
$;0*W.;"V=?EΩD
$;0*Wd_EΩD6;;(.(Jd_EΩD
'$;0*W=?EΩD6;;(.(Je?EΩD
Câu 12:\;JBE./O;7 !(D:FX6V0*W%5?EΩD$h
O6+!,^%_?E\`D900V5_°6V7>0*$
U;C(O073;JB"P
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Câu 13:UO0%a
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Câu 14:U:96v
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Chủ đề 3: Viết biểu thức u và i
Cho u viết i:
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