Network Analysis and Synthesis - ECE Questions and Answers

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In the circuit, shown the current I marked is given by

2.22 A

1.78 A

4.44 A

2 A

Answer : Option A

Explanation :

When 9 V source is connected, 2V source is short circuited [Superposition Theorem].

I' = 9/4.5 = 2 A, I₁ = 1.5 A

when 2 volt source is connected, then R_eq = 4.5

I₂ = 0.22 A

I = I₁ + I₂ = 0.66 A.

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