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You are supplied with a 1m long uniform ...

You are supplied with a 1m long uniform resistance wire of resistance 3Ω and a cell of emf 1.5v.How can you modify above arrangement to mea sure a p.d. in the range 0-1mV with a least count of 0.15mV.

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To get least count of 0.15mV, 10m wire has to be used
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