Compute the power that is absorbed or supplied by the elements in the network

#### Solution:

### Remember that power is current multiplied by the voltage.

### P_{36v}=-36(4)=-144W

##### (Negative because currentÂ enters the negative terminal, which also means powerÂ is being supplied)

### P_1=12(4)=48W

##### (Power is absorbed)

### P_2=24(2)=48W

##### (Power is absorbed)

### P_{1I_{x}}=(-I_x)(2)=-4(2)=-8W

##### (Power is supplied)

### P_3=28(2)=56W

##### (Power is absorbed)