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Exam Questions Papers

Q1:
Find RTH

A 200 Ω

B 0 Ω

C 400 Ω

D None of these

ANS:C - 400 Ω

Since there is no independent source in the network VTH = O V To find RTh apply : A current source of 1 A across A and B. Apply KCL at node n1 Apply KCL at node Vn2 Vn1 = 2Vx put in (i) ∴ Vn2 = 4vx put in (ii) 100 + Vx = 2Vx 100 = Vx ∴ Vn2 = 4Vx = 400 V ∴ .



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