Объяснение:
Эквиваленты сопротивлений
r23=R2*R3/(R2+R3)=4*20/(4+20)=3.33 Ом
r456=R4*R5*R6/(R4*R5+R5*R6+R4*R6)=5*18*2/(5*18+18*2+5*2)=1.32 Ома
r123456=r23+r456+R1=3.33+1.32+16.2=20.85 Ом
I7=U/R7=110/25=4.4 A
I1=U/r123456=110/20.85=5.28 A
U23=I1*r23=5.28*3.33=17.58 B
I2=U23/R2=17.58/4 = 4.4 A
I3=U23/R3=17.58/20 = 0.88 A
U456=I1*r456=5.28*1.32=6.97 B
I4=U456/R4=6.97/5=1.39 A
I5=U456/R5=6.97/18=0.39 A
I6=U456/R6=6.97/2=3.49 A
Объяснение:
Эквиваленты сопротивлений
r23=R2*R3/(R2+R3)=4*20/(4+20)=3.33 Ом
r456=R4*R5*R6/(R4*R5+R5*R6+R4*R6)=5*18*2/(5*18+18*2+5*2)=1.32 Ома
r123456=r23+r456+R1=3.33+1.32+16.2=20.85 Ом
I7=U/R7=110/25=4.4 A
I1=U/r123456=110/20.85=5.28 A
U23=I1*r23=5.28*3.33=17.58 B
I2=U23/R2=17.58/4 = 4.4 A
I3=U23/R3=17.58/20 = 0.88 A
U456=I1*r456=5.28*1.32=6.97 B
I4=U456/R4=6.97/5=1.39 A
I5=U456/R5=6.97/18=0.39 A
I6=U456/R6=6.97/2=3.49 A