An iron wire has a diameter 6.05 mm and resistivity 9.71x 10-8 Qm. What will be the length of thiswire to make a resistance of 400. What will be the new resistance, if the radius is doubled?(a) Length of the wire (in m) =(b) Resistance of the wire (in =Finish attempt ..NG 4) GOf2f3 Of4 Of6 Df7 )f8f9 *f10 3$&y478.R 28YSeD[F 1GYH iK-u )43 )# 3

Answered: Image /qna-images/answer/9a0b9bdc-5692-4939-a9ba-10d808aaf72a.jpg

Answered: ) Resistance of the wire (in )

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) Resistance of the wire (in )

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter28: Current And Resistance

Section: Chapter Questions

Problem 67PQ

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An iron wire has a diameter 6.05 mm and resistivity 9.71x 10-8 Qm. What will be the length of this
wire to make a resistance of 400. 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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