已知电路中某元件的电压和电流分别为υ=10cos(314t+30○)V, ι=2sin (314t
已知电路中某元件的电压和电流分别为υ=10cos(314t+30○)V, ι=2sin (314t
日期:2015-08-31 06:39:55 人气:1
因为υ=10cos(314t+30○)V=10sin(314t+30°+90°)
电压超前电流90° 是电感元件,感抗=10/2=5欧
已知电路中某元件的电压和电流分别为υ=10cos(314t+30○)V, ι=2sin (314t