![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
cho (R1 || R2) nt R3
R1= 150
R3= 64
I2= 100mA
Uac= 75V
tính I1, I3, R2, Rac (2 cách)
A__________+--------R1-------+____B_____+-----R3-------+C
+--------R2-------+
R1= 150
R3= 64
I2= 100mA
Uac= 75V
tính I1, I3, R2, Rac (2 cách)
A__________+--------R1-------+____B_____+-----R3-------+C
+--------R2-------+