Homework 3 Begin Date: 2/13/2018 2:00:00 PM 2/23/2018 4:00:00 AM Due Date: 2/22/

Question

Homework 3 Begin Date: 2/13/2018 2:00:00 PM 2/23/2018 4:00:00 AM Due Date: 2/22/2018 11:59:00 PM End Date: (8%) Problem 8: Consider the circuit in the diagram, with sources of emf listed below 0.1 Randomized Variables -29 V 5.0 . 20 050 40 -2.5 V 78 Ctheexpertta.com > 33% Part (a) Find 11 in amps Grade Summary 100% coso asino atan acotan) sinh0 tan) acoso sin) Attempts remaining: 1 456 -per attempt ) detailed view cotan) cosh) tanh0 cotanho ODegrees O Radians Hints: 1% deduction Nrhant Hints etninin Feedback: 2% deduction per feedback 33% Part (b) Find 12 in amps 33% Part (c) Find /3 in amps All content © 2018 Expert TA, LLC

Explanation / Answer

Applying KVL in upper loop,

e1 - 0.10 i1 - 20i1 + 40i2 + 0.50i2 - e2- 5i1 = 0

- 25.1 i1 + 40.5i2 = 12 ... (i)

in lower loop,

e2 - 0.50i2 - 40i2 - 0.20i3 - 48 - 0.05i3 - 78i3 + 2.5= 0

40.5i2 + 78.25i3 = - 4.5 ...... (ii)

Applying KCL, i1 + i2 - i3 = 0 ..... (iii)

Solving, i1 = -0.261 A ....Ans(A)

  
i2 = 0.134 A .....Ans(B)

i3 = - 0.127 A .....Ans(C)

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