Q=2+(1-1) (1)④ (25-20)2=7.07A (2)④=√52+(50-10)2=40.31A○A = 2 2 ( ) R C L I + I − I (1) ○A = 2 2 5 + (25 − 20 ) =7.07A (2) ○A = 2 2 5 + (50 −10 ) =40.31A