Obtain the Thevenin equivalent circuit parameters Vth and Rth for the following network.

Obtain the Thevenin equivalent circuit parameters Vth and Rth for the following network. Obtain the Thevenin equivalent circuit parameters Vth and Rth for the following network.

Right Answer is:

Vth = 10V, Rth = 5 Ω

SOLUTION

Obtain the Thevenin equivalent circuit parameters Vth and Rth for the following network.

Apply KCL in the loop

20 – 3I – 6I + 10 = 0

I = (20 + 10) / (3 + 6)

I = 30 / 9

V  = (30 / 9) × 6

V6Ω = 20 V

Now apply KCL in the outer loop

– 10 + V6Ω  – Vab = 0

Vab = Vth = (20 – 10) V = 10 V

where, I = current through loop

Calculation of Rth

Rth = [3 || 6] + 3

Rth = 2 + 3 = 5 Ω

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