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The given Wheatstone bridge is showing ...

The given Wheatstone bridge is showing no deflection in the galvanometer joined between the points B and D in fig

Text Solution

Verified by Experts

Since the galvanometer shown no deflection, the Wheatstone
bridge is blanced. Applying conditon for blanced wheatstone
dridge,
`(100(100+R))/(100R) = (200)/(40) = 5`
or `5R = 100 +R or R =25Omega`
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