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Re: [考題] 基本電學-宏華考題
Dec 18th 2013, 11:36, by u811312

作者u811312 (魚帥)

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標題Re: [考題] 基本電學-宏華考題

時間Wed Dec 18 11:36:05 2013

※ 引述《keney963817 (兔子)》之銘言： : 請問這題答案選項三是不是有問題啊? : 小弟算的答案是 -500W， : 而答案的-1000W是用最大值去帶， : 所有功率不都是用有效值去帶嗎? : http://ppt.cc/%7ECcH P(t)=P+Pcos2wt-Qsin2wt, 瞬間最大功率=2P=2*500=1000W -- Sent from my Android -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 1.166.172.223

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