1/R = 1/8 + 1/10 + 1/12 1/R = (30 + 24 + 20) / 240 1/R = 74 / 240 R = 240 / 37 R = 120/37 Ohms We know that, V = IR I = V/R I = 12 / (120/37) I = 12 × 37/120 I = 37/10 I = 3.7 A Now, The current in 12 ohm resistor → = 1 A ∴ The current in 12 ohm resistor is 1 ampere