Prob 8-34 Fig 8-89 solved

Prob 8-34 Fig 8-89 solved - Va/30 – Vb/30 – Vb/50 =...

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Prob 8-34 Fig 8-89 Write the nodal equations and determine Vab @ node a and using Iin = Iout: I1 + I2 = Va/R1 +(Va – Vb)/R2  =>0 .04 + 0.06 = Va/20 + (Va – Vb)/30 => 0.10 = 0.05Va +  Va/30 – Vb/30 0.10 = 0.05 Va + 0.0333 Va – 0.0333 Vb => 0.10 =  0.0833Va +(– 0.0333)Vb = 0.10 @ node b and using Iin = Iout: (Va – Vb)/R2 = I2 + I3 + Vb/R3  => (Va – Vb)/30 = 0.06 +0.025 + Vb/50
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Unformatted text preview: Va/30 – Vb/30 – Vb/50 = 0.085=> 0.0333Va – 0.0333Vb – 0.02 Vb = 0.085 0.0333Va + (-0.0533)Vb = 0.085 Entering into the calcultor and solving: Va = 0.75 V : Vb = -1.13 V Vab = Va – Vb = 0.75 –(-1.13 ) = = 0.75 + 1.13 = 1.88 V = Vab...
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This note was uploaded on 12/14/2010 for the course ECET 107 taught by Professor Huehne,karl during the Spring '09 term at IUPUI.

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