A potentiometer wire has length 4m and resis†an ce 8 ohm the resis†an ce that must be connected in series with the wire and an accumulator oh emf 2v so as to get a potential gradient 1mV per cm on the wire i

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

Q. A potentiometer wire has length 4 m and resistance

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. The resistance that must be connected in series with the wire and an accumulator of e.m.f 2V, so as to get a potential gradient 1 mV per cm on the wire is

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

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