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- 17.戴維寧等效電路如【圖 17】，調整負載電阻RL使負載電阻消耗最大功率，則負載電流 I L 為：(A)5A(B)4A(C)3A(D)2A
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17.戴維寧等效電路如【圖 17】，調整負載電阻RL使負載電阻消耗最大功率，則負載電流 I L 為：
(A)5A
(B)4A
(C)3A
(D)2A
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