Science
Junior High
這題的磁場方向怎麼看呀?
Cy
) 2.如右圖,在一通有電流的導線
北
上方發射向西的電子束,則電
子束發射後的移動軌跡為何?
4 東
e-
(A)直線向西前進
(B)直線向東前進
導線
電流I
(C)逐漸偏向導線
(D)逐漸偏離導線。
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