I am asking the identical question twice - be the first to answer both, and I wi
ID: 1964704 • Letter: I
Question
I am asking the identical question twice - be the first to answer both, and I will rate lifesaver both times!!
Note: The currents are not necessarily in the direction shown. Use the following variables as necessary: V1 = 22.0 V, V2 = 10.0 V, and R = 15.0
(a) In the figure above find the current in each resistor.
(b) Find the power delivered to each resistor.
Your response differs from the correct answer by more than 100%.A I3 3
Your response differs from the correct answer by more than 10%. Double check your calculations.A
Explanation / Answer
We have, taking KVL we have the following equations, V1 - 28 I1 + 12I2 -V2 = 0 22 - 28I1 + 12I2 -10 = 0 -----------------------equation -1 V1 - 28I1 - I3R = 0 22 - 28I1 - 15I3 = 0 -----------equation -2 Also , I3 = I1 + I2 ( from KCL) 22 - 28I1 - 15(I1 + I2) = 0 We have, 22 - 43 I1 - 15I2 = 0 12 - 28I1 + 12I2 = 0 Solving we get, a. I1 = 0.474 A I2 = 0.107 A I3 = 0.581 A b. Power R1 = I1^2 x R1 = 0.474^2 x 28 = 6.291 Watts Power R2 = I2^2 x R2 = 0.107^2 x 12 = 0.137 Watts Power R3 = I3^2 x R = 5.063 Watts
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