$$\text { Figure } 6 ' 3$$ -If V_R3=17 V in Figure 6-3 , what is the value of P₁ ? A) 2.89 W B) 1.7 mW C) 28.9 mW D) 17 mW

Question

Quizplus · Accepted Answer

Using Ohm's Law, we can find the value of resistance R3: V_R3 = 17 V R_{+ R3 + R} = 100 Ω R3 = 100 Ω - R_{- R} R3 = 100 Ω - 47 Ω - 33 Ω = 20 Ω Then, we can use the formula for power: P₁ = (V₁)^2 / R₁ P₁ = (17 V)^2 / (R_{+ R3 + R}) P₁ = (17 V)^2 / (47 Ω + 20 Ω + 33 Ω) P₁ = 28.9 mW Therefore, the answer is C.

Figure 6′3\text { Figure } 6 ' 3 Figure 6′3 -If VR3=17 V in Figure 6-3 , What

$\text { Figure } 6 ' 3$ -If V_R3=17 V in Figure 6-3 , What