Question

In the given circuit, find the power dissipated in 3 $\Omega$ resistance.

• A. 6 W
• B. 7 W
• C. 3 W
• D. 2 W

Answer 1

Answer: (A)

6 W

Answer 2

By converting the vertical series branches into their Thevenin equivalents and redrawing the bridge (with the 3 $\Omega$ resistor connecting the two subdivided nodes) one finds via nodal or mesh–analysis that the bridge resistor carries a current resulting in a power dissipation of 6 W.