conduce E
Req = 24+20//80 = 24+1600/100 = 24+16 = 40 ohm
I'1 = E/Req = 30/40 = 0,750 A c.w.
I'2 = I1*80/(80+20) = 0,75*0,8 = 0,600 A down
I'3 = I1-I2 = 0,750-0,600 = 0,150 A down
conduce J
R'eq = 24//20//80 = 16//24 = 16*24/40 = 9,60 ohm
V = 9,60*2 = 19,20 V
I''2 = 19,20/20 = 0,960 A up
I''1 = 19,20/24 = 0,800 A ..c.w
I''3 = 19,20/80 = 0,240 up
sovrapposizione
I1 = I'1+I''1 = 1,550 A c.w.
I2 = 0,960-0,600 = 0,360 A up
I3 = 0,240-0,150 = 0,090 A up
P2 = R2*I2^2 = 0,36^2*20 = 2,5920 watt