Electronics and Communication Engineering - Exam Questions Papers - Discussion
Discussion Forum : Exam Questions Papers - Exam Paper 3 (Q.No. 38)
38.
Find RTH
Answer: Option
Explanation:
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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