103中華電信 電路學 - 考試
By Rosalind
at 2014-02-17T13:01
at 2014-02-17T13:01
Table of Contents
某單相負載的端電壓為VL 220√2sin377t V ,負載電流為IL=10SIN(377-45) A
請求出：
一負載消耗的實功率。
二負載的等效阻抗
不好意思問這麼簡單的問題
因為我忘記第一題要不要除√2
我算法
S = 220√2/√2 ∠ 0 * 10/√2 ∠ -45
=1100√2∠ -45
P =1100√2 cos -45
=1100
第二題 VL/IL =22√2+ 45 電感性負載~
有錯請更正 感謝~
--
請求出：
一負載消耗的實功率。
二負載的等效阻抗
不好意思問這麼簡單的問題
因為我忘記第一題要不要除√2
我算法
S = 220√2/√2 ∠ 0 * 10/√2 ∠ -45
=1100√2∠ -45
P =1100√2 cos -45
=1100
第二題 VL/IL =22√2+ 45 電感性負載~
有錯請更正 感謝~
--
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考試
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