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[" Q."(4)rArr" Yhe resintance in left "]...

[" Q."(4)rArr" Yhe resintance in left "],[" and right gap of a meter "],[" Bridge are "20Omega" and "30Omega" ."],[" When the resintance in left "],[" gap is reduced to halg it's "],[" value,the balance pt.shifts by: "],[" (a) IS ' "cm" to right (b) "15cm" to left "],[" (c) "20m" ,"n" ,"n" (d) "20m" ,"]

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