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CBSE Class 12-science Answered

find unknown resistance X, if no current flows through AO
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Asked by shaileshbhagat82816 | 21 May, 2019, 09:45: PM
answered-by-expert 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 Thiyagarajan K | 21 May, 2019, 10:57: PM
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