Which Components Are Absorbing or Delivering Power in This Circuit?

[qpham26]

Homework Statement

For the figure:
https://sphotos-b.xx.fbcdn.net/hphotos-ash3/60194_493555593997294_154034279_n.jpg

a.Determine which components are absorbing power
and which are delivering power.

b. Is conservation of power satisfied? Explain your
answer.

Homework Equations

P = IV

KVL

The Attempt at a Solution

First I go through the smaller right loop with D and E
use KVL I have V_D = 10V

Use the bigger loop ABEC
-10V - 5V + V_A + 3V = 0--->V_A = 12V

Based on the current flow A and B are the source and the rest are absorbing power.
simultaneously solve for all the power:
P_A = 60w
P_B = 15w
P_C = 25w
P_D = 30w
P_E = 20w

P_A + P_B = P_C + P_D + P_E
=> so the conservation of power is satisfied.

 

[CWatters]

Looks right to me.