Find the power that is absorbed or supplied by the circuit elements.

#### Solution:

### Looking at diagram (a), we will analyze each element separately.

### P_{2A}= -20(2)

##### (Negative because the current is entering the negative terminal)

### P_{2A}= -40W

### Which means 40W of power is supplied by the 2A element.

### P_{1}=(6)(2)

### P_{1}=12W

### Therefore, 12W of power is absorbed by element 1.

### P_{14v}=(14)(2)

### P_{14v}=28W

### Thus, 28W are absorbed by the 14v element.

### We will now look at diagram (b).

### P_{4A}=(16)(-4)

### P_{4A}=-64W

### Which means 64W are supplied by the 4A element.

### P_{1}=(8)(4)

### P_{1}=32W

### Therefore, 32W are absorbed by element 1.

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