The specific resistance of platinum at 0oc is 10.3 .cm . how long must a wire of platinum be to have a resistance of 4 at 0oc , if the diameter ( d ) = 0.0274 cm . What will be the resistance of the wire at 100oc if the temperature coefficient ( ∝ ) of platinum is 0.0038 per oC .
The specific resistance of platinum at 0oc is 10.3 .cm . how long must a wire of platinum be to have a resistance of 4 at 0oc , if the diameter ( d ) = 0.0274 cm . What will be the resistance of the wire at 100oc if the temperature coefficient ( ∝ ) of platinum is 0.0038 per oC .
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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The specific resistance of platinum at 0oc is 10.3 .cm . how long must a wire of platinum be to have a resistance of 4 at 0oc , if the diameter ( d ) = 0.0274 cm . What will be the resistance of the wire at 100oc if the temperature coefficient ( ∝ ) of platinum is 0.0038 per oC .
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