For the circuit shown in Fig. P2.1, select node d as the reference node, (a) Use

Question

For the circuit shown in Fig. P2.1, select node d as the reference node, (a) Use nodal -analysis to find the node voltages, (b) Use the node voltages to determine i1,,i2,i3. to and i4- For the circuit shown in Fig. P2.1. select node c as the reference node, (a) Use nodal analysis to find the node voltages, (b) Use the node voltages to determine i1, i2, i3, and i4 For the circuit shown in Fig. P2.1, select node b as the reference node, (a) Use nodal analysis to find the node voltages, (b) Use the node voltages to determine i1, i2, i3,. and i4.

Explanation / Answer

There'll be four eqns.. four unknowns at node c, i2+i3+3=0 Vc=0 => (0-Va)/3 + (0-Vd)/4+3=0 (eqn1) at node b, i4=i1+3 (Vb-Vd)/2= (Va-Vb)/2+3 (2) at node a i1=i2+1 (Va-Vb)/2 = (0-Va)/3+1 at node d, i3+i4=1 (0-Vd)/4 + (Vb-Vd)/2=1 solve for Va,Vb,Vc,Vd and then you get i1, i2,i3,i4

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