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A 10 m long potentiometer wire is connected to a battery having a steady voltage...

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A 10 m long potentiometer wire is connected to a battery having a steady voltage and negligible resistance A leclanche cell is balanced at 4 m length of the wire If the length is kept the same but its cross section is doubled the null point will be obtained at A B C 8 m 4 m 2m None of these Correct Answer

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