A copper wire has a diameter 6.2 mm and resistivity 1.6 x 10-8 2m. What will be the length of this wire to make a resistance of 152. What will be the new resistance, if the radius is doubled? (a) Length of the wire (in m) = %3D (b) 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
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A copper wire has a diameter 6.2 mm and
resistivity 1.6 x 10-8 Qm. What will be the
length of this wire to make a resistance of
150. What will be the new resistance, if the
radius is doubled?
(a) Length of the wire (in m) =
(b) Resistance of the wire (in )N =
Transcribed Image Text:A copper wire has a diameter 6.2 mm and resistivity 1.6 x 10-8 Qm. What will be the length of this wire to make a resistance of 150. What will be the new resistance, if the radius is doubled? (a) Length of the wire (in m) = (b) Resistance of the wire (in )N =
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