1. A given material has a resistance of 20 2 at room temperature (20°C) and 25 at a temperature of 85°C. a) Does the material have a positive or a negative temperature coefficient? Explain briefly. b) Determine the value of the temperature coefficient, a, at 20°C. c) Assuming the resistance versus temperature function to be linear, determine the expected resistance ofthe material at 0°C (the freezing point of water) and at 100°C (the boiling point of water). 1. A given material has a resistance of 20 2 at room temperature (20°C) and 25 N at a temperature of 85°C.a) Does the material have a positive or a negative temperature coefficient? Explain briefly.b) Determine the value of the temperature coefficient, a, at 20°C.c) Assuming the resistance versus temperature function to be linear, determine the expected resistance ofthe material at 0°C (the freezing point of water) and at 100°C (the boiling point of water).

Given data: Tref=20o CT=85o CRref=20 ΩR=25 Ω

Answered: A given material has a resistance of 20…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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1. A given material has a resistance of 20 2 at room temperature (20°C) and 25 at a temperature of 85°C. a) Does the material have a positive or a negative temperature coefficient? Explain briefly. b) Determine the value of the temperature coefficient, a, at 20°C. c) Assuming the resistance versus temperature function to be linear, determine the expected resistance of the material at 0°C (the freezing point of water) and at 100°C (the boiling point of water).

1. A given material has a resistance of 20 2 at room temperature (20°C) and 25 N at a temperature of 85°C.
a) Does the material have a positive or a negative temperature coefficient? Explain briefly.
b) Determine the value of the temperature coefficient, a, at 20°C.
c) Assuming the resistance versus temperature function to be linear, determine the expected resistance of
the material at 0°C (the freezing point of water) and at 100°C (the boiling point of water).

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