I wasnt given the resistance to R2, what I wrote next to it in the photo is where I ended up. I think the method I used to get there was far too complex and probably wrong. Even though I found the Power dissipation through that resistor was correct at 1.6w. Is there a more elegant way to find the missing resistance? Any help is appreciated.
Oh, I used: 1/((1/Rt)  (1/R4)  (1/R3)  (1/R1)) = 17.86 + 65 = 47.14
Then I used: It x R2 = 28
Then: I (28) / V (45) = 1.6w
And 1.6w is what's listed as the answer. But this just seemed like a lot to do.
Oh, I used: 1/((1/Rt)  (1/R4)  (1/R3)  (1/R1)) = 17.86 + 65 = 47.14
Then I used: It x R2 = 28
Then: I (28) / V (45) = 1.6w
And 1.6w is what's listed as the answer. But this just seemed like a lot to do.
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