284. What would be the power consumed in the combined parallel section of the circuit shown in the illustration if the source voltage was 30 volts and the resistance for R1 is 10 ohms, R2 is 10 ohms, and R3 is 10 ohms, respectively

The power consumed in the parallel section of the circuit is calculated by first determining the equivalent resistance of the parallel combination (R1 and R2), which is 5 ohms. The voltage across this parallel section is 10 volts, resulting in a power dissipation of 20 watts (P = V2/R = 102/5 = 20).