Positive SSL
    14.素養(4)
A 203∠-90°A
B 203∠ 90°A
C 20∠-90°A
D 20∠ 90°A

相電流 Iab = 240∠0°12∠60° = 20∠-60° A

相電流 Ica = 240∠120°12∠60° = 20∠60° A

線電流 IA = Iab - Ica = 203∠-90° A