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Questions  

In Wheatstone's bridge, P=9  Ω,  Q=11  Ω,  R=4  Ω  and  S=6  Ω. How much resistance must be put in parallel to the resistance S to balance the bridge?

a
24  Ω
b
449  Ω
c
26.4   Ω
d
18.7   Ω

detailed solution

Correct option is C

PQ=RS'  For  balancing  bridge

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