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  • Calculate the power dissipated in circuit. <

Calculate the power dissipated in circuit.

Option: 1

162W


Option: 2

27W


Option: 3

81W


Option: 4

54W


Answers (1)

best_answer

R_{eff} \Rightarrow R_{1} and R_{2} are in series and R_{3} are in parallel.

\begin{aligned} & \frac{1}{R_{A B C}}=\frac{1}{6}+\frac{1}{6}=\frac{1+1}{6}=\frac{2}{6} \\ & R_{A B C}=\frac{6}{12}=3 \Omega \end{aligned}

Now, 

\begin{aligned} & R_{\text {eff }}=(3+6) \Omega=9 \Omega \\ & i=\frac{V}{R}=\frac{27^{3}}{g}=3 \mathrm{~A} \text {. } \\ & \text { Power }=i^{2} R=3^{2} \times 9 \\ & =81 \mathrm{~W} \end{aligned}

Posted by

himanshu.meshram

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