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[57" A standard cell af EMF "108V" is ba...

[57" A standard cell af EMF "108V" is balanced by the potential difforence across "91cm" of a mally "],[" long wire supplied by a cell of EMF "2V" through a serios resstor of resistance "2Omega" .The inten "],[" rosistance of the cell is zoro.Find the resistance per unit length of the potentiometor wire."],[" First congider the lower branch separialaly You have to frid "]

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