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[" A potentiometer wire is "10m" long an...

[" A potentiometer wire is "10m" long and has "],[" a resistance of "2Omega/m" It is connected in "],[" series with a battery of e.m.f."3V" and "],[" resistance of "10Omega" .The potential gradient "],[" along the wire in "V/m" is "......]

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