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Consider the meter bridge circuit withou...

Consider the meter bridge circuit without neglecting and corrections (`alpha`, `beta`)

Now start taking obsevation. At the position of `R`, unknown resistance is used, and at position of `S`, `300Omega` resistance is used. If the balanced length was found to be `l=26cm`, then estimate the unknown resistance.

A

`108Omega`

B

`105.4Omega`

C

`100Omega`

D

`110Omega`

Text Solution

Verified by Experts

`l_(eq)/((100-l)_(eq))=(R)/(300) `
`(R)/((300))=(26+1)/((100-26)+1)=(27)/(75)`
`R=(300xx27)/(75)=108Omega`
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