Current Electricity: JEE Main 2024 Physics question

JEE Main 2024 · 1 Feb, Evening shift · Q6492

JEE Main 20241 Feb, Evening shiftPhysicsHardCurrent Electricity150× since 2002

In a metre-bridge when a resistance in the left gap is

2 \Omega

and unknown resistance in the right gap, the balance length is found to be

40 \mathrm{~cm}

. On shunting the unknown resistance with

2 \Omega

, the balance length changes by :

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