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MHT CET 2024 (3 May, Shift 2) · Wheatstone Bridge & Metre Bridge

Wheatstone Bridge & Metre Bridge question from MHT CET 2024 (3 May, Shift 2)

Q32MHT CET 2024 · 3 MAY · SHIFT 2Medium

Wheatstone Bridge & Metre Bridge

Resistances in the left gap and right gap of a meter bridge are $10\ \Omega$ and $30\ \Omega$ respectively. If the resistances in the two gaps are interchanged, the balance point will shift to right by

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Answer: (c)

$\dfrac{10}{30} = \dfrac{l}{100 - l} \Rightarrow l = 25$ cm
After interchange: $l' = 75$ cm
Shift to right $= 75 - 25 = 50$ cm
So the answer is (c) $50$ cm.

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