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电 路 的 谐 振. 制作:浙江广厦建设职业技术学院 信息与控制工程学院. 将电阻 R=5  ,电感 L=0.159H, 电容 C=63.7  F 串联接在工频 220V 市电两端,在电感和电容两端就将产生 2000V 以上的高压,会对人身及用电设备产生危害。 产生这种现象的原因是因为发生了串联谐振。在实训中已指出,串联谐振时电感上的电压与电容上的电压相等而且可高出电源电压数倍,但由于相位关系两个电压正好互相抵消。电路中的电流与电压同相位,这时就称电路发生了谐振。研究谐振的目的在于掌握这一客观规律,以便在生产实践中充分地利用它,同时也要防止它可以造成的危害。.

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电 路 的 谐 振


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