How to find out the voltage v3 in the following circuit using mesh analysis?
I tried to solve it by considering the dependent current source as a super mesh and eliminated it.
The equations I got are:
8 - 6*i1 + 2*i2 +3*i3 = 0 ------------ this equation belongs to the loop that contains 80 V source.
30 - 70*i3 + 50*i1 -20*i2 = 0 --------- this belongs to the loop that contains 30 V source.
15* i1 - i2 + i3 = 0 --------- super mesh equation
The current values I got after solving the equations are:
i1 ~ 0.95A
i2 ~ 11.35A
i3 ~ -2.9A
which translates to V3 = 40 * i3 = 116 V
But the solution in the book says V3 = 104.2 V
Can somebody please tell me where did I go wrong?
Best Answer
simulate this circuit – Schematic created using CircuitLab
Applying KVL on Mesh 1 :
Applying KVL on the Supermesh :
Applying KCL at Node1 :
Solving (1), (2) and (3) :
Result :