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For what value of unknown resistance X, ...

For what value of unknown resistance `X`, the potential difference between `B` and `D` will be zero in the circuit shown in the figure ?

A

`4 Omega`

B

`6 Omega`

C

`2 Omega`

D

`5 Omega`

Text Solution

Verified by Experts

The correct Answer is:
B
(b) For balanced Wheatstone bridge` (P)/(Q) = (R )/(S)`
`implies (12)/((1//2)) = (x + 6)/((1//2)) implies x = 6 Omega`
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