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Questions  

If the balance point is obtained at the25th cm in a metre bridge the resistances in the left and right gaps are in the ratio of 

a
7 : 13
b
13 : 7
c
9 : 11
d
1 : 3

detailed solution

Correct option is D

Using Wheatstone principle   PQ=RS=l100−l=25100−25=2575=13

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Similar Questions

In meterbridge experiment when a resistance wire is connected in the left gap, the balance point is found at 30 cm. When the wire is replaced by another wire, the balance point is found at 60 cm. Find the balance point when the two wires connected in series.


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