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Questions  

In the network shown, if r=1Ω find the equivalent resistant between A and B 

a
43Ω
b
53Ω
c
3421Ω
d
179Ω

detailed solution

Correct option is B

The equivalent resistance of the network to the right of AB, RAB=r+2r×r2r+r=5r3=53Ω

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