Question 374Electricity & Electronics - Assistant Engineer

The correct answer is C) 360 milliwatts. To calculate the total power consumed by the circuit, we can use the formula P = V^2 / R, where P is the power, V is the source voltage, and R is the resistance. For the given circuit, the total resistance is the sum of the individual resistances: R1 (470 ohms), R2 (330 ohms), and R3 (800 ohms), which equals 1600 ohms. Plugging the values into the formula, we get P = (12V)^2 / 1600 ohms = 144 / 1.6 = 360 milliwatts. The other options are incorrect because they do not accurately reflect the total power consumed by the circuit given the provided resistance values and source voltage.