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In a meter bridge experiment when a resi...

In a meter bridge experiment when a resistance wire is connected in the left gap, the balance point is found at the `30^(th)` cm. When the wire is replaced by another wire,t he balance point is found at the `60^(th)` cm. Find the balance point when the two wires connected in parallel in the left gap successively

A

20cm

B

25cm

C

23 cm

D

30cm

Text Solution

Verified by Experts

The correct Answer is:
B
`(X)/(R)=(l)/(100-l)`
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