The Electrical Engineering Handbook

1

Magnetostatics

Keith W. Whites,     Department of Electrical and Computer Engineering, South Dakota School of Mines and Technology, Rapid City, South Dakota, USA

1.1. Introduction

1.2. Direct Current

1.2.1. Current and Current Density

1.2.2. Ohm’s Law

1.2.3. Resistance

1.2.4. Power and Joule’s Law

1.2.5. Conservation of Charge and Kirchhoff’s Current Law

1.3. Governing Equations of Magnetostatics

1.3.1. Postulates of Magnetostatics

1.3.2. Biot-Savart Law and Vector Magnetic Potential A

1.3.3. Boundary Conditions for B, H, and J

1.4. Magnetic Force and Torque

1.4.1. Ampère’s Force Law

1.4.2. Lorentz Force Equation

1.4.3. Torque and Magnetic Dipole Moment

1.5. Magnetic Materials

1.5.1. Magnetization Vector and Permeability