基本電學 - 考試
By Charlie
at 2013-04-23T20:26
at 2013-04-23T20:26
Table of Contents
(1)一RLC串聯迴路,R=20歐姆、L=0.1H、C=200uF,供應電壓為100V,
當發生諧振時,線路之電流為? 答案:5A
在截止頻率時之消耗功率及電路阻抗分別為? 答案:250W,20√2歐姆
請問電路阻抗20√2歐姆要怎麼算? 我怎麼算都是20歐姆...
(2)RLC串聯電路中,若操作頻率大於諧振頻率,則電阻R兩端之電壓: 答案:(C)
(A)超前電流 (B)落後電流 (C)與電流同相 (D)與電流之相位關係視電阻R大小而定
串聯電路f>fr時,為電感性,電壓超前電流,我覺得答案應該是(A)
麻煩各位解惑了 感謝!!
--
當發生諧振時,線路之電流為? 答案:5A
在截止頻率時之消耗功率及電路阻抗分別為? 答案:250W,20√2歐姆
請問電路阻抗20√2歐姆要怎麼算? 我怎麼算都是20歐姆...
(2)RLC串聯電路中,若操作頻率大於諧振頻率,則電阻R兩端之電壓: 答案:(C)
(A)超前電流 (B)落後電流 (C)與電流同相 (D)與電流之相位關係視電阻R大小而定
串聯電路f>fr時,為電感性,電壓超前電流,我覺得答案應該是(A)
麻煩各位解惑了 感謝!!
--
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