已知某一正弦交流电流,在t=0.1s时,其瞬时值为2A,初相角为60°,有效值I为A 发布时间:2017-07-20 16:18 │ 来源:www.tikuol.com 题型:问答题 简答题 问题: 已知某一正弦交流电流,在t=0.1s时,其瞬时值为2A,初相角为60°,有效值I为A,求此电流的周期T和频率f。
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