Electronics and Communication Engineering - Exam Questions Papers - Discussion
Discussion Forum : Exam Questions Papers - Exam Paper 6 (Q.No. 17)
17.
Find equivalent resistance. Each resistance is l Ω
Answer: Option
Explanation:
Cut the cuboid at XY - AB plane. This will make two parallel and symmetrical loops. Resistance between XY and AB = 1 Ω Splitting it in two equal values resistances
Solving one of the loop
Use Δ - Y transformation
⇒ RP'Q' = 
+ (1.6 || [1.2 + 2]) = 1.667 Ω
∴ Req = RP'Q' || RP'Q' = 
.
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