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A Potentiometer Wire Has Length of 2m and Resistance 10ω. It is Connected in Series with Resistance 990ω and a Cell of E.M.F. 2v. Calculate the Potential Gradient Along the Wire. - Physics

A potentiometer wire has length of 2m and resistance 10Ω. It is connected in series with resistance 990Ω and a cell of e.m.f. 2V. Calculate the potential gradient along the wire.

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Solution

Given: L = 2 m, R = 10 Ω, RE = 990 Ω

E = 2 V

To find: Potential gradient of wire (K)

Formula: `K = V/L`

∴ K = 10-2 V/m = 0.01 V/m

The potential gradient of wire is 0.01 V/m.

Concept: Meter Bridge
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