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MHT CET 2023 (14 May, Shift 1) · Wheatstone Bridge & Metre Bridge

Wheatstone Bridge & Metre Bridge question from MHT CET 2023 (14 May, Shift 1)

Q40MHT CET 2023 · 14 MAY · SHIFT 1Medium

Wheatstone Bridge & Metre Bridge

A wire of length $3\text{ m}$ connected in the left gap of a meter-bridge balances $8\ \Omega$ resistance in the right gap at a point, which divides the bridge wire in the ratio $3 : 2$ . The length of the wire corresponding to resistance of $1\ \Omega$ is

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Answer: (d)

$\dfrac{R_w}{8} = \dfrac{3}{2} \Rightarrow R_w = 12\ \Omega$ for $3$ m of wire
Length per ohm $= \dfrac{3}{12} = 0.25$ m
So the answer is (d) $0.25\text{ m}$ .

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