Question (Extracted from a book): Determine the voltage across each current source, the current through each voltage source, and the power delivered or absorbed by each source.
Official Answer: Ix = 16 A, current through 20 V source is 6 A, voltage across VCCS is 12 V, and voltage across the CCVS is 8 V; 20 V source delivers 120 W; 10 A source delivers 200 W; VCCS absorbs 192 W; and CCVS absorbs 128 W.
10 A source delivers 200 W, 10V source delivers 200W, and CCVS absorbs 128 W. I have no problem with those, the current flows in the same direction as 10A, 20V and in the opposite direction of CCVS.
VCCS absorbs 192 W. This doesn't make sense. The current flows in the same direction as VCCS (0.8 Vab). It should deliver and not absorb power.
This seems like double-standard to me. The rules are: if the current flows from - to +, the source delivers power, and on the other side, if the current flows from + to -, the source is absorbing.
Why did the solution say the source is absorbing power and not delivering power?