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[" In given potentiometer,e.m.f of "],["...

[" In given potentiometer,e.m.f of "],[" primary cell is "40V" and its "],[" internal resistance is "],[2Omega," resistance of wire "AB" is "],[4Omega" .In primary circuit,there is "],[" also a rheostat whose "],[" resistance varies as "],[[R_(h)=(2x+2)Omega" .If balance "],[" length obtained for "x=0" is "],[l_(1)" and "x=2" is "l_(2)" respectively,"],[" then find "(l_(1))/(l_(2))]]

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