-What is the true power in Figure 10 -1?
A)5.73 W
B)916 mW
C)275 mW
D)5.73 mW

Question

-What is the true power in Figure 10 -1?
A)5.73 W 
B)916 mW 
C)275 mW 
D)5.73 mW

Quizplus · Accepted Answer

The true power is the average power delivered to the load. In this case, the load is the resistor R. The average power delivered to the resistor is given by:P = V^2 / Rwhere V is the voltage across the resistor and R is the resistance of the resistor.In this case, the voltage across the resistor is 12 V and the resistance of the resistor is 20 ohms. Therefore, the average power delivered to the resistor is:P = 12^2 / 20 = 5.73 WTherefore, the true power in Figure 10-1 is 5.73 W.

-What Is the True Power in Figure 10 -1