已知i2=7sin(wt+30°)A,i2=4sin(wt+150°),i=i1+i2.利用相量法求I
已知i1=2sin(wt+30 )A,i2= 4sin(wt-45 )A,求i=i1+i2的最大值,要详细过程啊!~~急
已知i1=311sin(wt+45),i2=155sin(wt-20)试用向量法计算i=i1+i2
已知两个正弦量分别为i1=-4cos(100t+60°)A,i2=sin(100t+60°)A,则i1的相位相对i2的相
为什么sin'wt=(wt)'*sin't
两电阻并联,已知R1:R2=3:4,电流I1比I2多6A,求I1和I2
1、已知两正弦交流电流i1 = 5 sin(314t+60) A,i2 = 10 sin(314t-30) A,则二者的
已知两个正弦量为i1=10sin(314t-90º)A,i2=10sin(628t-30º)A.正确
已知正弦电流i1=20根号2sin(314t+60°)A,i2=30sin(314t-90°)A,用电流表分表测两电流值
已知两个正弦量为I1=10sin(314t+90度)安,I2=10sin(628t+30度)安那么I1超前I2 60度
I2+I1=I3+I5
I1=I2+I3为什么
I1=I2.I1>I2...I1<I2...D答案是无法确定