ABSTRACT
This research project report was carried out for the comparative analysis of electrical resistivity of different brands of wires. To achieve the above aims, the resistance of each of the materials was obtained using ohm’s law method and the resistivity value for each of the materials was determined using appropriate mathematical formula. For the results, the resistivity of copper wire for Sample was found to be 2.19 x 10-8 Ω/m, Sample B had the resistivity value of 1.96x 10-8 Ω/m. Sample C had the resistivity value of 3.95 x 10-8 Ω/m, Sample D had the resistivity value of 3.8 x 10-8 Ω/m, and Sample E had the resistivity value. Sample C was found to have the highest resistivity value followed by Sample B has the least resistivity value.
TABLE OF CONTENT
CONTENTS PAGE
Title Page – – – – – – – – i
Certification – – – – – – – ii
Dedication – – – – – – – – iii
Acknowledgements – – – – – – iv
Abstract – – – – – – – – vi
Table of Contents – – – – – – – vii
CHAPTER ONE: INTRODUCTION – – – 1
- Background of the Study – – – – – 1
- Aim and Objectives of the Study – – – 4
- Aim of the Study – – – – – – 4
- Objectives of the Study – – – – – 4
- Scope and Limitation of the Study – – – 5
- Definition of terms – – – – – – 5
- Aim and Objectives of the Study – – – 4
CHAPTER TWO:LITERATURE REVIEW – – 7
- Current and Electricity – – – – – 7
- Wires and their types – – – – – 8
- Uses of Wires – – – – – – 12
- Electrical Resistivity – – – – – 14
- Tenso Resistivity – – – – – – 15
- Conductivity and its causes – – – – 19
- Resistivity measurement – – – – – 26
- Two probes measurements – – – – 27
- Four Probes measurements – – – – 27
- Four point probes measurements – – – 29
- Theory of resistivity – – – – – 38
- Wires and their types – – – – – 8
CHAPTER THREE: MATERIALS AND METHOD – 44
- Materials – – – – – – – 44
- Methods – – – – – – – 44
- Circuit Diagram – – – – – – 45
CHAPTER FOUR: RESULTS AND DISCUSSION – 46
- Results – – – – – – – 46
- Discussion – – – – – – – 59
CHAPTER FIVE: SUMMARY, CONCLUSION AND RECOMMENDATIONS – – – – – 60
- Summary and Conclusion- – – – – 60
- Recommendations – – – – – – 60
References
CHAPTER ONE:
1.0 INTRODUCTION
1.1 Background of the Study Electrical resistivity is one of the most sensitive indicators of changes in the nature of the chemical binding. In general, the electrical resistivity is inversely proportional to the carrier density and the carrier mobility.
