物理 - 考試
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By Vanessa
at 2013-06-05T20:17
at 2013-06-05T20:17
Table of Contents
1.週期一定的圓周運動,其加速度大小和速率成(A)平方正比 (B)一次方正比 (C)一次
方反比 (D)平方反比 答案(b)
我的想法 向心加速度a=V^2/R 所以我覺得答案為(A)平方正比
2.如圖所示,一磁鐵與線圈有相對運動,故在線圈中產生感應電流,據圖可知:
(A)磁鐵向上運動 (B)磁鐵向右運動 (C)磁鐵向下運動 (D)磁鐵向左運動
http://ppt.cc/rJZR
答案(B)
這個要怎麼比怎麼看呢?
感謝~~
--
方反比 (D)平方反比 答案(b)
我的想法 向心加速度a=V^2/R 所以我覺得答案為(A)平方正比
2.如圖所示,一磁鐵與線圈有相對運動,故在線圈中產生感應電流,據圖可知:
(A)磁鐵向上運動 (B)磁鐵向右運動 (C)磁鐵向下運動 (D)磁鐵向左運動
http://ppt.cc/rJZR
答案(B)
這個要怎麼比怎麼看呢?
感謝~~
--
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