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If all four resistance and resistance of...

If all four resistance and resistance of a galvanometer are equal to R with equal resistance of wheatstone bridge, then equivalent resistance is:

A

R

B

`(R )/( 4)`

C

2R

D

`( R)/(2 )`

Text Solution

Verified by Experts

The correct Answer is:
A
`((R+R)(R+R))/((R+R)+(R+R))= (4R^(2))/(4R) =R `
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