Nomer 2 gimana mas terimaksih

Rab = 15 ohm

• 4, 4, 4 tersusun seri → 12
• 12, 12 tersusun paralel → 6
• 2, 6, 2 tersusun seri → 10
• 10, 10 tersusun paralel → 5
• 5, 5, 5 tersusun seri → 15 ohm ← jwb