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find unknown resistance X, if no current flows through AO

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Asked by shaileshbhagat82816 21st May 2019, 9:45 PM
Answered by Expert
Answer:
when there is no current flow between points A and O, then points A and O are at same potential.
 
Hence ratio of resistances in each branch across points B and C are same.
 
Hence   2Ω/4Ω = 3Ω/x   or   x = 6 Ω
Answered by Expert 21st May 2019, 10:57 PM
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