, lio 4u'(-+ f "I (rheo (I) (5))
l) K1 nto', K2 don g: 2) K1 ddng, K2 mr i;
3) Klvit K2 cimg mo';4) I{1vd K2 citng ding'
Loi gidi. Gqi q ld d6 10ch pha gita ddng di0n
vh hiOu diOn thd. Theo bhi ra ta c5
Zr=[,61:)Q0 (O) , ,, =*=100 (Q) '
1) K, m&, K, d5ng. Mach dion chi c6 mOt
cu6n cam L.
Cudng d6 hiou dung /, =u!' - 2oo =1' 16;
zt 200
Dbng diOn i, qua cu6n cim tr6 pha so v6i 1t,,, m6t e5c 1.
/tD ,')
/
I
V4y ir=JZtir] tOgo\ \
2) K, d6ng, K, m6.
diOn C.
Cudng d6 hiOu dung
Ddng di€n ir qua tU mot s5c 1 . 2 ( V4y i,.=2/Zsinl t00r \ 3) K,vh K, cirng mo. mac n6i tidp. Tdng tr6
z*-]rt trzr-k)' = lts' +(zm-100)'z =1251e;.
7 =U,,tn -2oo =1,6 (A) ;
z n, 125
Z, -2, 200-100
=! -q=0,9273 (rad)
tga=-R = 15
3
VQy i = 1,6fsin(l}Ottt -0,92T) (A).
4) K,vdK, cirng d5ng. Mach diOn gom l,, R,
C mac song song v6i nhau.
1, =!to =2oo=r (A); 1, =u!o =U:2 (A);
"- 2,,-2oo '\"" ^( zL' loo
,,.-_Unn -2oo=.1 ra).
rR- R '15 3'^ R '15 3'^ It .-t+ I LI 1:
Theo giin dd vecto (hinh vE) thi =2.848 (A); a) t -- | 2) Mach ,*1 lrat ) )' Mach di6n gdm L, R, C r.. =U n, -2oo =2 rA). ' Zr' loo
diOn s6m pha so vdi ttnu
II
,nr=9=0,3j I 5 = p= 0,359 (rad);
Vay i - 2,848J2sin(toozrr + 0,359) (A). D
{ Nnan x6t. Cdc ban sau day c5 ldi gieii t6t:
Nghd An: Vd Viin Hod, lOAl K6, THPT Nghi Loc
li, Va Ngpc Sf, K5A1, THPT Dion Chau IV; Nam
Dinh: Phiit Cao K),12C5, THPT A Hrii Hau; Th6i
Binh: NguydrtVdn'Thiinh, 11A1, THPT Nam Tidn
Hrii; Hi riin,rrdnvdnTho,l2A2, THPT Trdn Phti,
Dric Thq; Phri Tho: Th€'Anh, 1141, TLIPT Phong
Chtu, Pham Ddng Htii, l2C' THFrf Hing Vuong;
Kh6nh Hoh: Ll Th€'Huy,l1 Li, THPT Lc Quf DOn;
Quing NgEi: Nguylru Thi Kim Khuy€n,
-12 Li, THPT
ctruyen lc fniEt; Hung YOn: Nguy|n-Ditc Anh' 11A1, THPT Yen M!, NguvAn Thdnh Ldm, l2Al'
THPT Kim DQng; Vinh Phric: Vr7 Ngoc Quang'
12A3, Ngu:r,€n Minh Khtrong, 11A3, Vdn Ddltg Son'
10A3, TfrPT chuy€n Vinh Phtic; Thanh HoA Tdng
Duy Anh, 1184, THPT Bim Son, Trdn Hodng Dai'
1183, THPT Tri0u Son l, Nguvdn Hiru ChiA'n' 11A1'
THPT Luong D6c Bang, Trinh Vdn VLrong' 7lT'
THPT Lam Son, Nguyarz Thi Hdng, Lidn Son' H[i
Thinh, Tinh Gia; Bdc Ninh: Trrirr Vi€t Long' 1l Li'
THPT chuycn B6c Ninh; Hh NOi: Pham H6ng Son' 11A1, THPT chuYon DHSP Ha NQi'
NGUYEN VAN THUAN
(A).
diOn chi c5 m6t tu
rar ? qgl:--vf,,