1. CIRCUITO SERIE
RT: R1+R2+R3
RT:100+400+500=
RT =1000Ω
I: V
R
=20 :0,02 A
1000
IT= I1=I2=I3=0,02A
V:IxR
V:0,02 x 100:2v
V=0,02x 400=8v
V=0,02x5=10v