NEET Physics Current Electricity Questions Solved


A potentiometer wire has length 4 m and resistance 8Ω. The resistance that must be connected in series with the wire and an accumulator of emf 2V, so as to get a potential gradient 1mV per cm of the wire is 

(a)32Ω

(b)40Ω

(c)44Ω

(d)48Ω 

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