P 3.2-5 Determine the power absorbed by each of the resistors in the circuit shown in Figure P 3.2-5.

 

Answer: The 4-Ω resistor absorbs 16 W, the 6-Ω resistor absorbs 24 W, and the 8-Ω resistor absorbs 8 W.

Figure P 3.2-5

 

8 resistor is in parallel with the 8 V sources so power can be found from

 

 

4 resistor has 2 A of current running through it so we can calculate power from

 

 

To get voltage across 6 resistor do a voltage walk around middle loop.  Start at lower left and go clockwise.

Solving for

We can now get power from

 

 

 

 

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This page last updated on January 12, 2019