A 40- $\Omega$ Resistor Is Connected with A $12 - \Omega$ Resistor and This Combination Is Connected Across an Ideal Dc

Multiple Choice

A 4.0- $\Omega$ resistor is connected with a $12 - \Omega$ resistor and this combination is connected across an ideal dc power supply with $V = 6.0 \mathrm {~V}$ , as shown in the figure. When a total current $I$ flows from the power supply, what is the current through the $12 - \Omega$ resistor?

A) $2.0 \mathrm {~A}$
B) $3.0 \mathrm {~A}$
C) $1.5 \mathrm {~A}$
D) $0.50 \mathrm {~A}$
E) $2.5 \mathrm {~A}$