
國中自然3下2-4__
Authored by Tang Da
Fun
7th - 9th Grade
Used 18+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
已知磁鐵接近通有電流的長直導線時,會影響導線偏離或是接近磁鐵,請問磁場方向和長直導線兩者如何安排時,會使導線所受的作用力最大?
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
一電子束由地面沿著鉛直的方向朝空中射出時,會受地磁影響而偏向何方前進?
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
關於以右手開掌定則判斷導線和磁場方向之間的受力關係,下列哪一敘述是正確的?
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
取一條極長的導線置於一矩形線圈之左側,如附圖所示,兩者均通以電流I,則矩形線圈所受的合力方向為何?
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如附圖所示,三條通有同方向、同大小電流I的直導線甲、乙、丙,其間距離各為r1、r2,且r1>r2,則下列敘述何者正確?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
關於兩條平行且通有同方向電流的長直導線,下列敘述何者正確?
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
有一帶電粒子由地面沿鉛直方向朝空中射出,若此粒子受磁場作用而向東偏折,則此帶電粒子有可能是?
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