8. A heating element using nichrome connected to a 230 V supply draws an initial current of 3.2 A which settles after a few seconds to a steady value of 2.8 A. What is the steady temperature of t the heating element if the room temperature is 27.0°C? Temperature coefficient of resistance of nichrome averaged over the temperature range involved is 1,70× 10-4 °C-1.
8. A heating element using nichrome connected to a 230 V supply draws an initial current of 3.2 A which settles after a few seconds to a steady value of 2.8 A. What is the steady temperature of t the heating element if the room temperature is 27.0°C? Temperature coefficient of resistance of nichrome averaged over the temperature range involved is 1,70× 10-4 °C-1.
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 57PQ
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Question
![8. A heating element using nichrome connected to a
230 V supply draws an initial current of 3.2 A which
settles after a few seconds to a steady value of 2.8 A.
What is the steady temperature of the heating
element if the room temperature is 27.0°C?
Temperature coefficient of resistance of nichrome
averaged over the temperature range involved is
1.70× 10 °C-1.
-4](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F00754d48-f763-4d85-aaf1-a676591aa4f7%2Fbdf3e202-2c42-417a-ac94-8ec55f8dd552%2Fxudu1zg_processed.jpeg&w=3840&q=75)
Transcribed Image Text:8. A heating element using nichrome connected to a
230 V supply draws an initial current of 3.2 A which
settles after a few seconds to a steady value of 2.8 A.
What is the steady temperature of the heating
element if the room temperature is 27.0°C?
Temperature coefficient of resistance of nichrome
averaged over the temperature range involved is
1.70× 10 °C-1.
-4
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