Introduction to Electromagnetic Fields and Waves

amperes angle antenna applied approximately assumed becomes calculate called capacitance chapter circuit closed coil component conducting conductor Consequently consider constant coordinates course curl current density current element deduce defined denoting derivative determine dielectric differential direction displacement distance effect electric field electromagnetic electrons energy equals equation example expression field intensity flux density follows force frequency function given gives impedance important increase inductance integral loop losses magnetic field magnetic flux magnetic flux density magnitude material medium meter moving negative normal obtain path phase plane plates positive potential problem produced propagation radiation radius rectangular referred region represents resistance respectively result scalar shown in Fig side sinusoidal Solution space stored supplied surface theory unit length utilized varies vector velocity voltage drop volume wave wire zero