in the picture you can see the electrical network. in blue is the Current of each side of the electrical network. (did it with loop equations) i asked to find the Electric power of E and the Electric power of the Current source. so for E i found it and i got pe=11.4w. i also know what is the Current in each resistor. i have no problem to find the electric power of voltage source, but for current source i need some help. thanks.