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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