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单词 electric power
释义 electric power
The rate of expending energy or doing work in an electrical system. For a direct-current circuit, it is given by the product of the current passing through a system and the potential difference across it. In alternating-current circuits, the power is given by VIcosφ, where V and I are the RMS values and φ is the phase angle. Cosφ is called the power factor of the circuit
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更新时间:2025/6/23 2:10:21