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初中物理交变电流频率

更新时间: 2021-05-22 05:54:11     

1、初中物理交变电流频率是50赫兹。

2、交变电流的频率是指它单位时间内周期性变化的次数,单位是赫兹,与周期成倒数关系。日常生活中的交变电流的频率一般为50赫兹或60赫兹,而无线电技术中涉及的交流电频率一般较大,达到千赫兹(KHz)甚至百万赫兹(MHz)的度量。

关键词: 初中 物理 交变 电流 频率

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