Find the potential difference across each resistor in the figure below, (R1 = 4.

Question

Find the potential difference across each resistor in the figure below, (R1 = 4.65 Ohm, R2 = 3.70 Ohm, R3 = 2.70 Ohm, R4 = 2.30 Ohm) Assume that the currents I1, I2, and I3 are in the directions indicated by the arrows in the figure redrawn below. Applying Kirchhoff's junction rule at a gives I3 = I1 + I2. [1] Using Kirchhoff's loop rule starting at point a and going clockwise around the leftmost loop yields -3.00 V - R2I3 -R1I1 + 12.0 V = 0. Solving for I1 gives I1 = (Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. v/R1) - (R2/R1)I3, or ( I1 = Your response differs from the correct answer by more than 10%. Double check your calculations. - ( Your response differs from the correct answer by more than 100%.)I/3. [2]

Explanation / Answer

from the above equation I1 = 9/R1 - (R2/R1)I3 I1 = 1.935A - (R2/R1)I3 I1 = 1.935A - 0.796I3

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