... phi cha Ro, mt khỏc: Ro=Z ZL(tng) = ZC(tng) nờn ZL = ZC+ZCoVy X cú cha Ro v Co=====)(100100200ZZZ)(50ZRCLCAB0o Co = )F(104Nhn xột: Trờn õy l mt bi tp cũn khỏ ... 110010CCZ C mFZ = = =22 200LL CZZ Z L H = = = =CHN ABi 3: Mt on mch gm bin tr R mc ni tip vi mt t in C. hiu in th gia 2 u on mch cú biu thc 0cos ( )u U t V=. Hi phi ... Pmax = 500 W; R1 . R2 = 2R20. CHN ABi 6: Mt mch R, L, C mc ni tip (cun dõy thun cm) L v C khụng i R thay i c. t vo haiu mch mt ngun in xoay chiu cú hiu in th hiu dng v tn s khụng...