A wire of length 100 {\cm} is connected to a cell of emf 2 {\V} and negligible internal resistance. The resistance of the wire is 3 \\Omega, the additional resistance required to produce a potential difference of 1 {\mV} \/ {\cm}is

Manipal Entrance Test 2018 Physics Paper

Question : 46 of 50

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A wire of length 100‌cm is connected to a cell of emf 2V and negligible internal resistance. The resistance of the wire is 3Ω, the additional resistance required to produce a potential difference of 1‌mV∕cmis

60 Ω
47 Ω
57 Ω
35 Ω

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