电磁能量的传输及长直螺线管外的磁场

The Propagation of Electromagnetic Energy and the Distribution of Magnetic Field Around a Long Straight Solenoid

在静场和恒定场中 ,能量的传输是由坡印廷矢量决定的 .本文讨论了长直导线和长直螺线管的能量传输 ,并对导线外的电场和螺线管外的磁场做了分析 .

In the field of static and steady state, energy propagation is decided with Poynting vector. In this paper,the situation of energy propagation for a long straight wire and solenoid is discussed, and the electric field around a straight wire and the magnetic field around a solenoid are analysed.