Q1: When the potential difference applied across a coil of copper wire at a mean temperature of 20°C at 10 V a current of 1.0 A flows in it. After a period of time the current falls to 0.9 A with the potential difference unaltered. Determine the mean temperature of the coil. The temperature coefficient of resistance of copper at 0°C as 4.28 10 /K.
Q1: When the potential difference applied across a coil of copper wire at a mean temperature of 20°C at 10 V a current of 1.0 A flows in it. After a period of time the current falls to 0.9 A with the potential difference unaltered. Determine the mean temperature of the coil. The temperature coefficient of resistance of copper at 0°C as 4.28 10 /K.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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![Q1: When the potential difference applied across a coil of copper wire at a mean
temperature of 20°C at 10 V a current of 1.0 A flows in it. After a period of time the
current falls to 0.9 A with the potential difference unaltered. Determine the mean
temperature of the coil. The temperature coefficient of resistance of copper at 0°C as
4.28 10 /K.
k
-
273 +
E](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fad04b4f9-e154-4e5f-aae3-a1a4018462c0%2Feb5db6ca-7a96-4a45-b9ea-b7d1066ee913%2Ffiunfls_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q1: When the potential difference applied across a coil of copper wire at a mean
temperature of 20°C at 10 V a current of 1.0 A flows in it. After a period of time the
current falls to 0.9 A with the potential difference unaltered. Determine the mean
temperature of the coil. The temperature coefficient of resistance of copper at 0°C as
4.28 10 /K.
k
-
273 +
E
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