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In the following circuit diagram. The ga...

In the following circuit diagram. The galvanometer reading is zero. If the inter nal resistance of cells are negligible then what is the value of X?

Text Solution

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`because I_(g)=O therefore I=(10)/(400+X)`
also potential difference across X is 2V `rArr IX=2`
` (10X)/(400+X) =2 (because I=(10)/(400+X) )rArrX=100Omega`
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