103N_First_Chapter

103N_First_Chapter - Electromagnetism and Optics The Lab...

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Electromagnetism and Optics The Lab Manual for PHY 103N Engineering Physics II Laboratory Department of Physics University of Texas at Austin, Austin, TX 78712 2007-2008 November 14, 2008
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Contents Preface ix 0 Introduction 1 0.1 General Lab Procedures . . . . . . . . . . . . . . . . . . . . . 1 0.2 Error Estimation and Propagation . . . . . . . . . . . . . . . . 2 0.2.1 Defnition oF Uncertainty . . . . . . . . . . . . . . . . . 3 0.2.2 Estimating Parameters and Their Uncertainties . . . . 5 0.2.3 Propagating and Reporting Uncertainties . . . . . . . . 12 0.3 The Lab Worksheet . . . . . . . . . . . . . . . . . . . . . . . . 16 0.3.1 Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . 16 0.3.2 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . 16 0.3.3 Computer Work . . . . . . . . . . . . . . . . . . . . . . 17 0.3.4 Pre-Classroom Checklist . . . . . . . . . . . . . . . . . 19 0.3.5 . . . . . . . . . . . . . . . . 19 0.3.6 Discussion and Conclusion . . . . . . . . . . . . . . . . 20 0.W1Error Analysis Worksheet . . . . . . . . . . . . . . . . . . . . 22 0.W1.1Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . 22 0.W1.2Procedure . . . . . . . . . . . . . . . . . . . . . . . . . 22 0.W1.3 Computer Work . . . . . . . . . . . . . . . . . . . . . 22 0.W1.4Enter Data . . . . . . . . . . . . . . . . . . . . . . . . 23 0.W1.5Entering ±ormulas . . . . . . . . . . . . . . . . . . . . 24 0.W1.6Plotting Data . . . . . . . . . . . . . . . . . . . . . . . 25 0.W1.7PerForming a Weighted Least-Squares ±it . . . . . . . . 26 0.W1 In-Classroom Calculations . . . . . . . . . . . . . . . . . . . 29 . . . . . . . . . . . . . . 35 0.W2.1Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . 35 0.W2.2Procedure . . . . . . . . . . . . . . . . . . . . . . . . . 35 0.W2.3Computer Work . . . . . . . . . . . . . . . . . . . . . . 35 iii
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iv CONTENTS . . . . . . . . . . . . . . . . . 37 1 Electrostatics 43 1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 1.2 Theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 1.2.1 Electric Charge . . . . . . . . . . . . . . . . . . . . . . 43 1.2.2 Coulomb’s Law . . . . . . . . . . . . . . . . . . . . . . 44 1.2.3 Electric Field . . . . . . . . . . . . . . . . . . . . . . . 44 1.2.4 Gauss’ Law . . . . . . . . . . . . . . . . . . . . . . . . 45 1.2.5 Electric Potential . . . . . . . . . . . . . . . . . . . . . 47 1.3 Apparatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 1.3.1 The Pasco ES-9077 Electrostatics Voltage Source . . . 50 1.3.2 The Pasco ES-9078 Electrometer . . . . . . . . . . . . 50 1.3.3 The Pasco ES-9042A Faraday Ice Pail . . . . . . . . . 51 1.3.4 The Pasco ES-9075A Charge Producers and Proof Planes 51 1.3.5 The Pasco ES-9059 13-cm Spheres . . . . . . . . . . . 52 1.3.6 The Pasco High Resistance Paper and Conductive Ink 52 1.W Electrostatics Worksheet .
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103N_First_Chapter - Electromagnetism and Optics The Lab...

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