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The resistance in the gap of a metre ...

The resistance in the gap of a metre bridge is `10Omega` and the balance point 40 Cm from the left end .Calculate the value of unknwon resistance .

Text Solution

Verified by Experts

Here `L=40Cm`
`R=10Omega`
Now , using meter bridge formula
`X=Rxx((100-L)/(L))`
`X=10xx((100-40)/(40))`
`X=overset(5)cancel10xx(overset(3)cancel60)/(2^(cancel40))`
`rArrX=5xx3`
`X=15Omega`
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