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The total power consumed in the circuit shown in figure is—
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- 6 W`
- 8 W
- 9 W
- 12 W
Correct Option: B
In order to calculate the total power consumed in the circuit. First off all calculate the net current in the circuit element by using superposition theorem.
Case I. Take 4V source
| i = | 4 | = 1 amp. (A → B → C) | 4 |
Case II. Take 2A source here current in each 2 Ω resistance will be 1 amp. (B → A and B → C)
Net current in branch AB resistance R = 1 – 1 = 0 Net current in branch BC resistance RBC = 1+1 = 2amp.
Power consumed in branch BC = I2 RBC = 22. 2 = 8 W
