已知两正弦电流i1=220√2sin314tA,i2=220√2sin(314t-120°)A,试写
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已知正弦电流i1=70.7sin(347t-30°)A,i2=60sin(314t+60°)A.求正弦电流i1,i2的和已知正弦电流i1=70.7sin(314t-30°)A,i2=60sin(314
已知正弦电流i1=70.7sin(314t-30°)A,i2=60sin(314t+60°)A.求正弦电流i1,i2的和已知正弦电流i1=70.7sin(314t-30°)A,i2=60sin(314
正弦电流i1=8sin(ωt+90°),i2=6sinωt,i=i1+i2,则i的有效值为正弦电流i1=8sin(ωt+90°),i2=6sinωt,i=i1+i2,则i的有效值为RL串联正弦电路中,
1、已知两正弦交流电流i1=5sin(314t+60)A,i2=10sin(314t-30)A,则二者的相位关系是?1、已知两正弦交流电流i1=5sin(314t+60)A,i2=10sin(314t
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同频率正弦量i1与i2,相位关系是反相,若i1=2sin(ωt-70)A,则i2的初相位为.同频率正弦量i1与i2,相位关系是反相,若i1=2sin(ωt-70)A,则
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已知i1=5√2sin(wt+30)A,和i2=5√2sin(wt-30)A,求(1)i=i1+i2,(2)i=i1-i2,已知i1=5√2sin(wt+30)A,和i2=5√2sin(wt-30)A
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