Answered: An iron wire has a diameter 1.6 mm and… | bartleby

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An iron wire has a diameter 1.6 mm and resistivity
9.71x 10-8 m. What will be the length of this wire
to make a resistance of 800. What will be the new
resistance, if the radius is doubled?
(a) Length of the wire (in m) =
=
(b) Resistance of the wire (in ) =

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