-Part A Hz-60 \" 1.1 -and H-8.7 and that ho entf of the battenes IP Find the cum

Question

-Part A Hz-60 " 1.1 -and H-8.7 and that ho entf of the battenes IP Find the cument in each resistor in the figure Figure 1). Suppose the four resistors n tis arut have t e values RI-3.9 are £1-12 V and 2-9.0V Express your answers using two significant figures separated by commas 2,13,4-0.83,1.396,-0.5,0.08 x Incorrect; Try Again; 5 attempts remaining PartB s the potential at pont A greater than, less than, or equal to the potensial at point B? greater than less than oqual to Correct -Part C Detenmine the potential ditference between the points A and8. Express your answer using two signiticant tigures guire 10, 1 YA--10.62 Rj x Incorrect; Try Again; 5 attempts remaining Provide Feedback Next >

Explanation / Answer

at junction A

I1 + I2 = I3 ..............(1)

for left loop

E1 - I1*R1 - I3*R3 - I1*R4 = 0

12 - I1*3.9 - I3*1.1 - I1*8.7 = 0 ...............(2)

for right loop

I2*R2 - E2 + I3*R3 = 0

I2*6 - 9 + I3*1.1 = 0 ..............(3)

solving 1 , 2, 3

I1 = 0.78 A

I2 = 1.15 A

I3 = 1.93 A

I4 = I1 = 0.78 A

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part(B)

greater than

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part (c)

moving from A to B

along E2

VA + I2*R2 - E2 = VB

VA - VB = E2 - I2*R2

VA - VB = 9 - (1.15*6)

VA - VB = 2.1 v

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