1-Some copper wire has a resistance of 200 at 20°C. A current is passed through the wire and the temperature rises to 90°C. Determine the resistance of the wire at 90°C, correct to the nearest ohm, assuming that the temperature cocfficient of resistance is 0.004/°C at 0°C

1-Some copper wire has a resistance of 200 at 20°C. A current is passed through the wire and the temperature rises to 90°C. Determine the resistance of the wire at 90°C, correct to the nearest ohm, assuming that the temperature cocfficient of resistance is 0.004/°C at 0°C

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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Type of Magnetic Material

Every material has a unique composition that defines its magnetic behavior. Some materials get attracted towards a magnet and are called magnetic materials. Based on the magnetic properties held by each material, they are classified into different types.

Question

1- Some copper wire has a resistance of 200 at 20°C. A current is passed through the wire
and the temperature rises to 90°C. Determine the resistance of the wire at 90°C, correct
to the nearest ohm, assuming that the temperature cocfficient of resistance is 0.004/°C at
0°C
2- Find RAn in the network in Figure below.
ww
6 kN
ww
6 k0
ww
2 kl
RA
36kn
B
3- Find Vab and Vde in the circuit in Figure below
Vab
20 V
330
V
de
310

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