a) đề cho r nhờ
b) [tex]Rm=\frac{(R1+R3).R2}{R2+R3+R1}+R4+r[/tex]
[tex]Im=\frac{U}{Rm}=I4[/tex]
[tex]I2=\frac{R1+R3}{R1+R2+R3}.Im[/tex]
I13=Im-I2
ko cho A vs M ak bạn
a) đề cho r nhờ
b) [tex]Rm=\frac{(R1+R3).R2}{R2+R3+R1}+R4+r[/tex]
[tex]Im=\frac{U}{Rm}=I4[/tex]
[tex]I2=\frac{R1+R3}{R1+R2+R3}.Im[/tex]
I13=Im-I2
ko cho A vs M ak bạn