Solution of if teh legth of wire is doubled then its resistance
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it's resistance will be twice to the original resistance because
R=row l/g (eqn1)
and if length is doubled then
R'=row 2l/g which can be written as,
R'=2R
R=row l/g (eqn1)
and if length is doubled then
R'=row 2l/g which can be written as,
R'=2R
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