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i=10Sin(314t+30°)A i=10Sin(314t-30°)A i=10 2Sin(314t-30°)A i=10 2Sin(50t+30°)A
i(t)=sin(314t+90°)A i(t)= √2 sin(314t+90°)A i(t)=cos(314t+90°)A i(t)= √2 cos(314t+90°)A
e=220sin(314t+30 °) e=220 √2sin(314t+30 °) e=220sin(314t -30°) e=220 √2sin(314t -30°)
u=380 2 sin (314t-1200 )V u=3803 sin(314t-1200 )V u=380 2 sin (314t+1200 )V u=3803 sin(314t+1200 )V
i(t)=sin(314t+90°)A i(t)= √2 sin(314t+90°)A i(t)=cos(314t+90°)A i(t)= √2 cos(314t+90°)A
(31-2)2 (3-21)2 (3×-2×)2 (3×1-2×)2
u=380 √2sin(314 t-120 °)V u=380 √3sin(3 14 t-120 °)V u=380 √2sin(314 t+120 °)V u=380 √3sin(314 t+120 °)V
u1和u2 u3和u4 u1和u4 u1、u2和u3
Uu=311sin314t Uu=311sin(314t-300) Vu=311sin(314t-1500) Vu=311sin(314t-1500) Wu=311sin(314t+900)
u=220sin(314t+30º) u=220sin(314t-30º) u=220√2sin(314t+30º) u=220√2sin(314t-30º)
NH4+NO3 - CCO SO2S SO2 SO32-
2sin314t 2sin(314t+30) 2sin(314t-30) 2sin(314t+60)