a) Using Kirchhoff\'s rules, calculate the current in Rj with the directions ind

Question

a) Using Kirchhoff's rules, calculate the current in Rj with the directions indicated in the figure below Assume that R1 = 1.00 kQ, R2 = 2.00 kQ, R3 = 3.00 kQ, E,-70.0 V, E2 = 60.0 V and ES = 85.0 V NOTE : If the current points in the opposite direction indicated, please use a negative sign 0.00 mA You are correct. Computer's answer now shown above Your receipt is 163-7863 €) b) Calculate the current in R2 5.028 mA Submit Answer Incorrect. Tries 4/6 Previous Tries c) Calculate the current in R3 5.00 mA You are correct. Computer's answer now shown above Your receipt is 163-7907 ou d) Calculate the magnitude of the potential difference between points c and f. 7.00×10' v You are correct. Computer's answer now shown above.._.

Explanation / Answer

Kirchoff' rule on left loop

- i1 R1-i2 R2 + E2 - E1 = 0

1(i1)+2(i2)= 60-70 = -10 --------------- (1)

K rule on right loop

i2 R2+ i3 R3 = E2-E3 = -25 ----------- (2)

i1+i3 = i2 ---------------- (3)

Use i1 from (3) in (1)

3(i2) -i3 = -10

2(i2) +3(i3) = -25 (from Eqn (2)

Solving we get i3 = -5.0A; i2=-5A and i1= 0 A

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