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Question 1.P.10: Determine the power delivered by the 10 V source in the foll......

Determine the power delivered by the 10 V source in the following circuit.

1.1.10
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The voltage at 5 Ω resistor is

\begin{aligned} & V_{5  \Omega}=10  V \\ & I_{5  \Omega}=\frac{10}{5}=2  A \end{aligned}

Then applying KCL, we have
−i – 2 + 2 = 0 ⇒ i = 0

Thus, the power delivered by the 10 V source  =10 \cdot(0)=0 Watts

\begin{aligned} & P_{2 A }=2 \times 10=20 \text { Watts (delivered) } \\ & P_{5  \Omega}=2^2 \times 5=20 \text { Watts (absorbed) } \end{aligned}

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