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恒流电场和恒流电路方程①左卫群（桂林电子工业学院桂林５４１００４）１恒流电场方程电流场一个重要的基本性质是它的连续方程，即（Ｓ）ｊｄｓ＝－ｄｑｄｔ表明在单位时间内，从任意一个闭合曲面Ｓ内流出的电量（Ｓ）ｊｄｓ等于单位时间Ｓ面内电荷的减少量－ｄ...
Constant current field and constant current circuit equation 1 Zuo Weiqun (Guilin Institute of Electronic Technology Guilin 541004) 1 constant current field equation current field is an important basic property of its continuous equation, that (S) j ds = -dqdt that In a unit time, from any closed surface S out of the amount of electricity (S) j ds equal to the unit time S-plane charge reduction -d ...