Tolong bantu & isi caranya ya :D

I = 0,6 = 6/10 A
cari rangkaian paralelnya dulu
1/Rp= 1/4+1/8 = 2+1/8 = 3/8 = 8/3 ohm
Rtotal = 3 + 8/3 = 3 8/3 ohm =17/3 ohm
V = I × R
= 6/10 × 17/3
=3,4 volt