Ngày tải lên :
22/03/2014, 15:21
... I1 =14 /17 A; I2 =19 /17 A; I3=5 /17 A) Bi 10 : (24.28)Cho mch: E1=8V, r1 =1, RA=0, RAC=R1, RCB=R2, Khi R1 =12 ampek ch Khi R1=8 ampek ch 1/ 3A Tỡm E2, r2 (S: 6V, 2) Bi 11 : (24.27) Cho mch: E1=E2=6V, r1 =1, ... R3=2R1=2R2 =12 0, U =12 0V b) R1 =1, R2=R3=2, R4=0,8, U=6V c) R2=2R1=4, R4=2R3 =12 R5 =1, 5, Ra=0.UAB =12 V Bi 2: Cho s mch in: UAB =12 V, R3=R4=R5=R6=4, R1=R2=2 Tỡm I1,I2,I3,I4,I5,I6? (S: I1=I4=3A, I2=I5 =1, 5A, ... E1=6V, E2=4,5V, r1=2, R=2, RA=0, ampek ch 2A Tỡm r2 (S:0,5) Bi 13 : (24 .11 ) Cho mch: E =17 0V,r=5, R1 =19 5, R2=R3=200, vụn k ch 10 0V Tỡm in tr vụn k (S: 10 00) Bi 14 : (24 .17 ) Cho mch: E1=6V, r1 =1, ...