Question

In the figure shown, what is the power dissipated in the 5 ohm resistance in the circuit? Select one:

Answer 1

first find the current in 5 $\Omega$    then power disspited = i² * 5

so

current in circuit = V / R_total

R_total = 6 $\Omega$

current = 12 / 6 = 2 A

current in 5 $\Omega$   resistor = 2/3 A

so powe disspited = (2/3)² * 5 = 2.22222 W