Introduction Chapter 1 Electrostatic Field 1.1 Coulomb's Law 1.1.1 Electric Charge 1.1.2 Coulomb's Law 1.1.3 The Principle of Superposition of Electric Forces 1.2 Electric Field and Electric Field Intensity 1.2.1 Electric Field 1.2.2 Electric Field Intensity 1.2.3 Calculation of Electric Field Intensity 1.3 Gauss Theorem of Electrostatic Field 1.3.1 Electric Field Lines 1.3.2 Electric Flux 1.3.3 Gauss Theorem 1.3.4 Find the Distribution of Electrostatic Field with Gauss Theorem 1.4 Circuital Theorem of Electrostatic Field and Electric Potential 1.4.1 Circuital Theorem of Electrostatic Field 1.4.2 Electrostatic Potential Energy 1.4.3 Electric Potential and Electric Potential Difference 1.4.4 Calculation of Electric Potential 1.4.5 Equipotential Surface 1.4.6 Electric Potential Gradient 1.5 Electric Dipole in Electrostatic Field 1.5.1 Torque on Electric Dipole in External Electric Field 1.5.2 Electric Potential Energy of Electric Dipole in External Electric Field Summary Questions Problems Chapter 2 Conductor and Dielectric in Electrostatic Field 2.1 Conductor in Electrostatic Field 2.1.1 The Conditions of Electrostatic Equilibrium of Conductor 2.1.2 The Charge Distribution of Conductor in Electrostatic Equilibrium 2.1.3 Electrostatic Shielding 2.1.4 Calculation of Electrostatic Field in the Presence of Conductors 2.2 Dielectric in Electrostatic Field 2.2.1 The Influence of Dielectric on Electric Field 2.2.2 Polarization of Dielectrics 2.2.3 Electric Polarization 2.3 Gauss Theorem with Dielectric 2.3.1 Electric Displacement and Gauss Theorem with Dielectric 2.3.2 Application of Gauss Theorem with Dielectric 2.3.3 The Boundary Conditions of Electrostatic Field 2.4 Capacitor and Its Capacity 2.4.1 Capacitance of Isolated Conductor 2.4.2 Capacitance of Capacitor 2.4.3 Connection of Capacitors 2.4.4 Calculation and Application of Capacitance 2.5 Energy of Electric Field 2.5.1 The Electrostatic Energy of the Charge System 2.5.2 Energy of Capacitor