584. What would be the total current draw of the circuit as shown in figure «A» of the illustration if the source voltage is 24 volts, the resistance for R1 is 12 ohms, the resistance for R2 is 24 ohms, and the resistance for R3 is 36 ohms

The total current draw is 1.33 amperes. R1 and R2 are in series, forming a 36-ohm equivalent resistance. This combination is in parallel with R3 (36 ohms), resulting in an equivalent resistance of 18 ohms. Applying Ohm's Law (I = V/R), the total current is 24 volts / 18 ohms = 1.33 amperes.