- D6r mqt diQn 6p xoay chid' zr = 100cos100zr (V) vdo hai dAu cira m6t mAch diQn R,L,C mic nOi fi6p, trong d6 cudn ddy tirLrAn c6Lrn c6 clQ tr-t cAm 1:1-(H), tq di6n c6 diQn clung C bi6n. - 'hanh ph"1 so voi diQn 6p tric thdi giiia. - hai dAu do4n m4ch. - "u". - Ang te' sri c1.'g rn6t m4ch dao dQng LCr Ii tuor-rg thu cluoc s6'g di€n tir c6 b*6c s6ng. - MQt dQng co kh6ng dong b0 ba ptra ho4t clong binh thtrcrng kiri'di6n 6p hiQu dung giira hai dAu m6i cuon c16y lit 177 V. - ""tg Ja". - Cdu Z.MQt sqi day;;;hdi Jai r,O m trZo thing dirug, AAu ttcn gan ridi.mlt1eY6t.tt*.qgoq :6. - Khi dat vao hai eau A,B mQt diQn 6p xoay chieu c6 gi.e t4 hiQu dr,rng u thi. - diQn 6p hiQu dung girt". - rrJfa., doan mach eM la U,, cdn diQn 6p hi-eu dpng giira hai dAu do4n m4ch MB le Uz. - Ci t"a"la". - luqt mQt di€n trcv,ftua", mQt tp diQn vd mQt cuQn ddV thud,n^cim vdo m6t diQn. - Mot m4ch dao dQng i-c ri tuon'g u9ry.:tO4rt"a". - L vd hai tu C gi6ng q* -*."t. - ".,-ql- "1P, *Ot ,ft Ui d6nh thirn[ hodnloan' DiQn 6p cqc dai hai ddu cuqn cam iau d6 sd bing bao nhiOu lAn so vdi lirc dAu?. - tA' vir B' c6ch nhau khoirng 12 (cm) dang dao dQng vuong g6c v6i m{t nudc tao ,u ,;,ig c6"!uOg r:lg 1,6 :T. - ld.dicm tren m{t nu6c, c6ch d.u hai ngu6n vd c6ch trung di6m o c,ia AB mQt t<hiang 8 (cm). - Mach diQn xoay chieimic noi tiep g.m mQt di.. - D?t vdo hai dAu mach mdt. - diqn 6p xoay chiAu u: 100J7 cosyrfr (V) thi ddng diQn trong m4ch c6 cuhng d0 higu dung I: 2. - Mdt mach cli€n rnic nOi tl€p gOm cudn d6y thuAn cdm co d6 tir cAm L: 1 (H), tu di€n co. - Hz vit diQn 6p hi€u dung.. - pha cira ddng diQn so vdi diQn 6p giira hai dAu. - diQn 6p hiQu dung gifia hai dAu do4n m4ch.. - dQng di€u hda cirng phtrong, cung tdn sO f =.50 Hzvir pha ban ddu bing kh6ng. - Nhirng di€m nim trdn dudng trung truc cira do4n SrSz md s6ng tOng hqp tai d6 luOn dao c16ng nguoc pha v6i s6ng tOng hqp t4i trung di6m O cira SrSz , c6ch O m6t khoing nhd nhdt ld. - Ddng di€n cdm irng chi xuAt hiqn 6 cuQn ddy ctia phAn ring, kh6ng thtj xuAt hiOn o cuQn. - Ang ten su dpng mQt m4ch clao clQng LC li tumg di3 thu s6ng diQn tri, trong d6 cuQn dAy c6 dQ tU cAm L kh6ng thay ddi, con tg cli€n c6 di€n dung C thay d6i duqc. - M6i song di€n tir dAu t4o ra trong m4ch dao d6ng mQt suAt diQn dQng c6m img. - MQt ddy thdp dz\i AB : 60 cm hai dAu dr-rgc gincO dinh, duoc kfch thich cho dao d6ng bing mQt nam chdm di6n.nu0i bing mang diQn thdnh phd tAn s6 50 Hz. - Diqn dp ctat vdo hai dAu doan rnach c6 bi6Lr thirc u : uJ2. - Mach diQn g6m di€n tro R = 30.'6 a n6i tiOp v6i mQt tu cliQn. - DiQn 6p tirc thdi O hai dAu doan mach ld u=120JIcos100nt(V). - DiQn dp hiOu clung o hai dAu tu cliQn lauc =60.,6V. - Cho mQt con lic lo xo dao dQng di6u hoa voi nhucrng .trinh x : 5cos (20t + n / 6) (cm)' Tai. - g0% khi diQn 6p *ouy .iriA,, dat vao. - C*d'";;O $"g diqn hie'u dung chav qua dQng co bdng A.23,22 A' 'B'7 '74;:. - "o'"e tr o tr4m ph6t J'J;;;"'t# *tt iict inu 'u". - iniirc.;;;";aav"va hie;".rdt-;iu q"a tririlitruvon tai di€n lan luqtld. - ciu z9.MQt m4ch dao d6ng ri tucrng igo r aar tnuan "# ua tu diQn) dang thgc hi.n dao d.ng di.n tt tU do. - Aai trong *a"f', q". - cuQnddythu6n"i t"trl';*j:::*T offiu. - t8t ldng r<inh tnJv tinh c.o *o". - chi.u mQt chirm s6ng tring hgp roi uao,ia', tc". - "t ". - raig r.i"t'a""i gJ". - trongh6PXcoth0-g6m - ,2 ^F "L"I. - mQt ."Q;il;;uan ta* mic ndi ti6p v6i mQt tu diQn'. - Mot ch6t di6m dao dQng diau hba v6i phucrng trinh: x = 4cos(4nt *!>r','')'Trong thoi. - EAt vdo hai dAu doan mach AB di6n 6p u: l20J7cos100nt(V) thi cuong d6 dong di6n qua cuQn ddy ldL i : 0,6. - ^li cos( 100 nt- n 16)(1r} Diqn 6p hiQu dung gita hai ddu dopn mach X ld. - Chi6u vdo khe S ddng thoi hai 5nh s6ng don sic c6 bu6cs6ng l.' =0,40pm vd .1". - MQt chAt di€m dao dQng di6u hoa v6i chu ki T : 1 s. - trinh dao dQng cira ckit di€rr la. - MQt con lic lo xo dao dQng diAu hod tr6n phucrng nim ngang tr€n m6t qu! d4o ld mOt do4n thing ddi 10 cm. - Khi con l6c dao dQng di6u hoa, thoi gian v4t ndng di tu lirc ld xo c6 chiOu dhi cpc dai dCn lirc vdt qua vi Ei clnbing lAn thir hai ld. - KhoAng c6ch gita hai di6m gAn nhau nhAt tr6n do4n AB dao dQng v6i biOn dQ cuc dai ld. - Id ddng chuy6n dich c6 huong ctra c6c hat mang di€n trong vat d6n.. - ld ddng cli6n trong m4ch dao dQng LC.. - i 0".,6 cm. - Khi mic vdo mach c6 diQn 6p hiQu dpng 220 V thi sinh ra m6t c6ng suAt co hgc 128 W. - C1p 44.MQt mach dao d6ng LC dang birc x4 dugc s6ng trung. - D[t vdo hai d}u mach mQt diQn 6p xoay chiAu co diQn 6p hiQu dung U vd tAn sO f. - pie., 6p hiQu dpng o hai dAu cuQn ddy ld Ua : 90 V. - Mach dao dQng gdm cuQn day co dQ tqr cdm L : 1,2.10-o H ve mot tu diQn c6 diQn dung C. - De duy tri dao dQng diQn ttr trong mach vdi hiQu diQn th6 cuc d4itren tp diQn lh Uo: 6 V thi phii cung cAp cho m4ch mQt ning luong diQn co c6ng sudt. - MQt con lic lo. - Con lic dao dQng diAu hda vdi chu ki. - olen xoay cnleu co cucrng ad rrieu dung 2 A chay qua cuOn ddy thi diQn 6p giira hai ddu cudn ddy )r. - vd diqn 6p gifia hai dAu tu dien c6 cirng gi6 trf hiQu dgng nhung lQch pha nhau "". - C6ns sudt ti€u 3". - EiQn 6p hiQu dpng giira hai dAu do4n m4ch bing A.347 Y . - dd d4t tdi t6c dQ goc 2b n rcd/sthi no phdi quay bao nhi€u vdng (ke tt thdi di€m ban dAu)?. - MQt con lic lo xo co dQ cimg la k treo thing dirng. - Cho con l6c dao dQng di6u hda theo phucrng thing dung v6i bi€n 'JQ ld A (A >