The resistance of a wire is given by R = Ro[1+ a(T – T.)] where T. - 20 °C, R. = 6 N ± 0.3 % is the resistance at 20 °C, a = 0.004/ °C ±1 % is the temperature coefficient of resistance, and the temperature of the wire is T = 30±1°C. Determine (a) the normal resistance of the wire and (b) the uncertainty in the resistance of the wire, ur|

The resistance of a wire is given by R = Ro[1+ a(T – T.)] where T. - 20 °C, R. = 6 N ± 0.3 % is the resistance at 20 °C, a = 0.004/ °C ±1 % is the temperature coefficient of resistance, and the temperature of the wire is T = 30±1°C. Determine (a) the normal resistance of the wire and (b) the uncertainty in the resistance of the wire, ur|

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 68PQ

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