(Solved): For the circuit below determine the thevenin's steps and finally draw the equivalent thevenin circui ...

Expert Answer

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(a). By taking Vs = 120V
(i). Thevenin's equivalent voltage - by opening the 2 ohm load - open circuit voltage



Applying KVL in the loops to find the open circuit voltage



in loop 2



solving the above two equations, the currents are calculated I1 and I2




The open circuit - Thevenin's equivalent voltage is given by



(ii). Thevenin's equivalent resistance: By shorting the 120 V source and by finding equivalent resistance across a-b



The equivalent resistance is given by



This 1 ohm is in series with the 2 ohm resistor



This 3 ohm is in parallel with 2 ohm resistor




Thevenin's equivalent resistance is given by





The thevenin's equivalent for supply voltage Vs=120 V is V(th) = 24 V and R(th) = 3.2 ohms