tài liệu kĩ thuật điện - bài tập chương 2

BÀI TẬP CHƯƠNG 2
Bài 1

 !"#$%&'(Ω)!*+ ,
- #,./Ω
)!01!$!234$5. 
6 )7&486!'1!$
9 )7&686:;6<=> ?- @
Bài 2
4A!B26/.(C
)&486;
Bài 3
D γ86EF 86G(
6 +4.D4'H2EA!I962@
9 JKL26+G
 4.E4'G
Bài 4:
D γ,( 
)M6MNA!B26:9OB26
;
Bài 5
D γ,/ DP,' DQR,'/Mω
6 )A!4B26
9 )&686GSMT6!U!&UA!
 ?9V2WHA!1!6
 )!"O5+586A!B26
Bài 6
X6!YCZ;VK. D ,./ X6
;&[Ω:$L*2\) !01!$M62
6 C, DZ, 
9 C, DZ,]. 

 C,]. DZ, 
 C,]. DZ,]. 
Vo
A
B
R 2
6 0 0
M
N
R 1
4 0 0
R LV s D 2
1 2
Bài 7 :=
^; _,.' :C`,I_`,[Ca
#.,[
Ω
D#',
Ω
6R )7)>bcH!23 MD#.D#'
9R  M,[ D7d6<=86#JVSe!f="&.'
R #J,.D7:S!6<=86 MVSe!f="&.'
Bài 8D_; _,./ D
I_,.CDI_6g,/C
c!23 M:h!=";!"6<=>' ?
( )S#J;!"6<=>'?/
)7d6<=86#VS#Je="
&./ 
R i
R LV s D 2

1 2