GATE Electrical Engineering (EE) 2021 Solved Papers

Question : 20 of 65

Marks: +1, -0

For the network shown, the equivalent Thevenin voltage and Thevenin impedance as seen across terminals 'ab' is:

Solution:

{V}_{ {th}}= {V}_{ {ab}}=2 × 3 {i}+10 {i}

=13 {i} \;\text " volt "\;

But

i=5

{V}_{ {th}}= {V}_{ {ab}}=13 × 5=65

volt
For

{R}_{ {th}}

- {V}+2 × 1+3 {i}+10 {i}=0

{V}=15

volts

{R}_{ {Th}}=\;{ {V}}/{1}=15 Ω

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