The power delivered by 7A current source

Home » Network Theory » Network theory miscellaneous » Question

Direction: 20 to Q. 25. For the circuit shown below—

The power delivered by 7A current source—

1. – 217W
2. 217W
3. 35W
4. None of these

Correct Option: B

The given circuit can be modified as shown below

From figure the voltage across terminal B and A
V_A + 5 – 4 + 30 – V_B = 0
or
V_B – V_A = 31V
Since terminal B is positive, it means current delivered by the 7A current source will be positive and given by
P_delivered = 7 × 31 = 217W