CAJ | 학술논문

正弦交流电路中，由于各元件上的电压、电流之间存在相位差，借助于相量图可以清楚地描绘出各个电压、电流之间的大小和相位关系。文中列举了五个典型的交流电路的例题，通过相量图的分析，建立了清晰的解题思路，化简了许多繁琐的数学计算和突出了物理概念，达到了事半功倍之效。
정현교류전로중，유우각원건상적전압、전류지간존재상위차，차조우상량도가이청초지묘회출각개전압、전류지간적대소화상위관계。문중열거료오개전형적교류전로적례제，통과상량도적분석，건립료청석적해제사로，화간료허다번쇄적수학계산화돌출료물리개념，체도료사반공배지효。
Unlike DC, it is often confused when analyzing sinusoid alternating current circuits, because of phase differences among the voltages and currents. By means of the phasor diagram, amplitudes and phase relationships of all voltages and currents can be described clearly. Five typical AC examples are listed. With the aid of phasor diagram, one can establish the clear method for problem solution, simplify the com- plicated mathematical computing, stress the physical concepts and improve the efficiency.