A 20 V battery is connected to a 5A current source. The

Home » Network Theory » Network Elements and the Concept of Circuit » Question

A 20 V battery is connected to a 5A current source. The power absorbed by the battery and current source when current enters the positive—

1. 100 W, – 100 W
2. – 100 W, 100 W
3. – 100 W, – 100 W
4. 100 W, 100 W

Correct Option: A

The power absorbed by the source will be positive if and only if current enters to the negative terminal of the battery. Since here current enters to the positive terminal of the battery that's why absorbed power
= – 5 × 20 = – 100 W.
While for battery power absorbed
= 20 × 5 = 100 W