A potentiometer wire has length 4m resistance 8Ω. The resistance that must be connected

A Potentiometer Wire Has Length 4m Resistance 8 The Resistance Physics Question

A potentiometer wire has length 4m 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 gradientof 1mV per cm on the wire is

Options

(a) 32Ω
(b) 40Ω
(c) 44Ω
(d) 48Ω

Correct Answer:

32Ω

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

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Topics: Current Electricity (136)
Subject: Physics (2479)

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