请求达人帮忙做题是非题1.( )基尔霍夫电流定律是表明流过任一节点的瞬间电流代数和为零.2.( )在正弦交流u=Sin(314t-30°)mV中,最大值为1mV,频率为50Hz.3.( )在星形联接的三相对称电路中,
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![请求达人帮忙做题是非题1.( )基尔霍夫电流定律是表明流过任一节点的瞬间电流代数和为零.2.( )在正弦交流u=Sin(314t-30°)mV中,最大值为1mV,频率为50Hz.3.( )在星形联接的三相对称电路中,](/uploads/image/z/14883755-59-5.jpg?t=%E8%AF%B7%E6%B1%82%E8%BE%BE%E4%BA%BA%E5%B8%AE%E5%BF%99%E5%81%9A%E9%A2%98%E6%98%AF%E9%9D%9E%E9%A2%981.%EF%BC%88+%EF%BC%89%E5%9F%BA%E5%B0%94%E9%9C%8D%E5%A4%AB%E7%94%B5%E6%B5%81%E5%AE%9A%E5%BE%8B%E6%98%AF%E8%A1%A8%E6%98%8E%E6%B5%81%E8%BF%87%E4%BB%BB%E4%B8%80%E8%8A%82%E7%82%B9%E7%9A%84%E7%9E%AC%E9%97%B4%E7%94%B5%E6%B5%81%E4%BB%A3%E6%95%B0%E5%92%8C%E4%B8%BA%E9%9B%B6.2.%EF%BC%88+%EF%BC%89%E5%9C%A8%E6%AD%A3%E5%BC%A6%E4%BA%A4%E6%B5%81u%3DSin%28314t-30%C2%B0%29mV%E4%B8%AD%2C%E6%9C%80%E5%A4%A7%E5%80%BC%E4%B8%BA1mV%2C%E9%A2%91%E7%8E%87%E4%B8%BA50Hz.3.%EF%BC%88+%EF%BC%89%E5%9C%A8%E6%98%9F%E5%BD%A2%E8%81%94%E6%8E%A5%E7%9A%84%E4%B8%89%E7%9B%B8%E5%AF%B9%E7%A7%B0%E7%94%B5%E8%B7%AF%E4%B8%AD%2C)
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