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A potentiometer wire has resistance of p...

A potentiometer wire has resistance of per unit length of `0.1Omega//m`. A cell of e.m.f. `1.5V` balances against `300cm` length of the wire. Find the current in the potentiometer wire.

Text Solution

Verified by Experts

The current in the wire,
`I=V/R=(V//L)/(R//L) = (E//l)/(R//L) = 1.5/3 xx 1/0.1 = 5A`
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