The figure shows a meter-bridge circuit, `X = 12 Omega` and `R = 18 Omega`. The jockey

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The figure shows a meter-bridge circuit, `X = 12 Omega` and `R = 18 Omega`. The jockey `J` is at the null point. If `R` is made `8 Omega` through what distance will the the jockey `J` have to be moved to obtained null point again?
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