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In a meter bridge experiment, the ratio ...

In a meter bridge experiment, the ratio of the left gap resistance to right gap resistance is 2:3, the balance point from left is

A

20 cm

B

40 cm

C

50 cm

D

60 cm

Text Solution

Verified by Experts

The correct Answer is:
B
For a meter bridge balance condition is given by
`(R )/(S) =(l)/((100-l))`
Given `(R )/(S) =(2)/(3)`
So, `(l)/(100-l)=(2)/(3)`
`3l=200-2l`
`l=40cm`
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