Two resistances are connected in two gaps of a metre bridge. The balance point is 20 { \cm} from the zero end. A resistance of 15 \\Omega is connected in series with the smaller of the two. The null point shifts to 40 { \cm}. The value of the smaller resistance in ohms is:

BITSAT 2005 Solved Question Paper

Section: Physics

Question : 52 of 150

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Two resistances are connected in two gaps of a metre bridge. The balance point is 20 ‌cm from the zero end. A resistance of 15Ω is connected in series with the smaller of the two. The null point shifts to 40 ‌cm. The value of the smaller resistance in ohms is:

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