ta có R6nt((R1ntR2)//(R3ntR4ntR5))
\(R12=10\Omega;R345=15\Omega;R12345=6\Omega;Rt\text{đ}=11\Omega\)
=>\(I=\dfrac{U}{Rt\text{đ}}=\dfrac{6}{11}A\)
=>\(I6=I12345=I=\dfrac{6}{11}A\)
Vì R12//R345=>U12=U345=U12345=I12345.R12345=\(\dfrac{6}{11}.6=\dfrac{36}{11}V\)
Vì R1ntR2=>I1=I2=I12=\(\dfrac{U12}{R12}=\dfrac{36}{11}:10=\dfrac{18}{55}A\)
Vì R3ntR4ntR5=>I3=I4=I5=I345=\(\dfrac{U345}{R345}=\dfrac{36}{11}:15=\dfrac{12}{55}A\)
b) U6=I6.R6=\(\dfrac{6}{11}.5=\dfrac{30}{11}V\)
U2=I2.R2=\(\dfrac{18}{55}.5=\dfrac{18}{11}V\)
U1=I1.R1=\(\dfrac{18}{55}.5=\dfrac{18}{11}V\)
U3=I3.R3=\(\dfrac{12}{55}.5=\dfrac{12}{11}V;U4=I4.R4=\dfrac{12}{55}.5=\dfrac{12}{11}V;U5=I5.R5=\dfrac{12}{55}.5=\dfrac{12}{11}V\)